225015515264 has 128 divisors (see below), whose sum is σ = 475298539200. Its totient is φ = 105814425600.

The previous prime is 225015515251. The next prime is 225015515369. The reversal of 225015515264 is 462515510522.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325637159 + ... + 325637849.

Almost surely, 2^225015515264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225015515264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237649269600).

225015515264 is an abundant number, since it is smaller than the sum of its proper divisors (250283023936).

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

225015515264 is a wasteful number, since it uses less digits than its factorization.

225015515264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502 (or 1490 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 225015515264 in words is "two hundred twenty-five billion, fifteen million, five hundred fifteen thousand, two hundred sixty-four".