15255020 has 24 divisors (see below), whose sum is σ = 34948368. Its totient is φ = 5547200.

The previous prime is 15255017. The next prime is 15255041. The reversal of 15255020 is 2055251.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 15254983 and 15255001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34451 + ... + 34890.

It is an arithmetic number, because the mean of its divisors is an integer number (1456182).

Almost surely, 2^15255020 is an apocalyptic number.

15255020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15255020 is an abundant number, since it is smaller than the sum of its proper divisors (19693348).

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

15255020 is a wasteful number, since it uses less digits than its factorization.

15255020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69361 (or 69359 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 15255020 is about 3905.7675302045. The cubic root of 15255020 is about 248.0109906680.

The spelling of 15255020 in words is "fifteen million, two hundred fifty-five thousand, twenty".