55251486 has 24 divisors (see below), whose sum is σ = 123574464. Its totient is φ = 17822880.

The previous prime is 55251473. The next prime is 55251503. The reversal of 55251486 is 68415255.

It is a self number, because there is not a number n which added to its sum of digits gives 55251486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48951 + ... + 50066.

It is an arithmetic number, because the mean of its divisors is an integer number (5148936).

Almost surely, 2^55251486 is an apocalyptic number.

55251486 is an abundant number, since it is smaller than the sum of its proper divisors (68322978).

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

55251486 is a wasteful number, since it uses less digits than its factorization.

55251486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99056 (or 99053 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 55251486 is about 7433.1343321643. The cubic root of 55251486 is about 380.8739947466.

The spelling of 55251486 in words is "fifty-five million, two hundred fifty-one thousand, four hundred eighty-six".