15255136256 has 24 divisors (see below), whose sum is σ = 30502827810. Its totient is φ = 7627567104.

The previous prime is 15255136231. The next prime is 15255136277. The reversal of 15255136256 is 65263155251.

It can be written as a sum of positive squares in only one way, i.e., 15138841600 + 116294656 = 123040^2 + 10784^2 .

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 as a sum of consecutive naturals, namely, 3722351 + ... + 3726446.

Almost surely, 2^15255136256 is an apocalyptic number.

15255136256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15255136256 is a deficient number, since it is larger than the sum of its proper divisors (15247691554).

15255136256 is an frugal number, since it uses more digits than its factorization.

15255136256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7448819 (or 7448799 counting only the distinct ones).

The product of its digits is 270000, while the sum is 41.

The spelling of 15255136256 in words is "fifteen billion, two hundred fifty-five million, one hundred thirty-six thousand, two hundred fifty-six".