15055988 has 12 divisors (see below), whose sum is σ = 27256740. Its totient is φ = 7268352.

The previous prime is 15055981. The next prime is 15056009. The reversal of 15055988 is 88955051.

It can be written as a sum of positive squares in 2 ways, for example, as 10510564 + 4545424 = 3242^2 + 2132^2 .

It is a super-2 number, since 2×15055988² = 453365549312288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15055981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64781 + ... + 65012.

It is an arithmetic number, because the mean of its divisors is an integer number (2271395).

Almost surely, 2^15055988 is an apocalyptic number.

It is an amenable number.

15055988 is a deficient number, since it is larger than the sum of its proper divisors (12200752).

15055988 is a wasteful number, since it uses less digits than its factorization.

15055988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129826 (or 129824 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 41.

The square root of 15055988 is about 3880.2046337790. The cubic root of 15055988 is about 246.9276670842.

The spelling of 15055988 in words is "fifteen million, fifty-five thousand, nine hundred eighty-eight".