155059056 has 80 divisors (see below), whose sum is σ = 460461600. Its totient is φ = 49900032.

The previous prime is 155059043. The next prime is 155059061. The reversal of 155059056 is 650950551.

155059056 is a `hidden beast` number, since 1 + 550 + 59 + 0 + 56 = 666.

It is a super-2 number, since 2×155059056² = 48086621695222272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 155059056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6340 + ... + 18716.

It is an arithmetic number, because the mean of its divisors is an integer number (5755770).

Almost surely, 2^155059056 is an apocalyptic number.

155059056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155059056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230230800).

155059056 is an abundant number, since it is smaller than the sum of its proper divisors (305402544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155059056 is a wasteful number, since it uses less digits than its factorization.

155059056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12423 (or 12411 counting only the distinct ones).

The product of its (nonzero) digits is 33750, while the sum is 36.

The square root of 155059056 is about 12452.2711181535. The cubic root of 155059056 is about 537.2367483912.

It can be divided in two parts, 1550 and 59056, that added together give a palindrome (60606).

The spelling of 155059056 in words is "one hundred fifty-five million, fifty-nine thousand, fifty-six".