15897056 has 24 divisors (see below), whose sum is σ = 35768880. Its totient is φ = 6812928.

The previous prime is 15897043. The next prime is 15897059. The reversal of 15897056 is 65079851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15897059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35261 + ... + 35708.

It is an arithmetic number, because the mean of its divisors is an integer number (1490370).

Almost surely, 2^15897056 is an apocalyptic number.

15897056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15897056 is an abundant number, since it is smaller than the sum of its proper divisors (19871824).

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

15897056 is an equidigital number, since it uses as much as digits as its factorization.

15897056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70986 (or 70978 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 15897056 is about 3987.1112349670. Note that the first 3 decimals coincide. The cubic root of 15897056 is about 251.4426246572.

The spelling of 15897056 in words is "fifteen million, eight hundred ninety-seven thousand, fifty-six".