15504234256 has 45 divisors (see below), whose sum is σ = 34951714119. Its totient is φ = 6643177632.

The previous prime is 15504234253. The next prime is 15504234271. The reversal of 15504234256 is 65243240551.

The square root of 15504234256 is 124516.

It is a perfect power (a square), and thus also a powerful number.

It is not an unprimeable number, because it can be changed into a prime (15504234253) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3484225 + ... + 3488671.

Almost surely, 2^15504234256 is an apocalyptic number.

15504234256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

15504234256 is the 124516-th square number.

It is an amenable number.

15504234256 is an abundant number, since it is smaller than the sum of its proper divisors (19447479863).

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

15504234256 is an frugal number, since it uses more digits than its factorization.

15504234256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8916 (or 4456 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 15504234256 in words is "fifteen billion, five hundred four million, two hundred thirty-four thousand, two hundred fifty-six".