3257505264 has 40 divisors (see below), whose sum is σ = 9062548432. Its totient is φ = 1002309120.

The previous prime is 3257505263. The next prime is 3257505311. The reversal of 3257505264 is 4625057523.

It is a happy number.

It is a super-2 number, since 2×3257505264² = 21222681089975419392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3257505263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2609557 + ... + 2610804.

Almost surely, 2^3257505264 is an apocalyptic number.

It is an amenable number.

3257505264 is an abundant number, since it is smaller than the sum of its proper divisors (5805043168).

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

3257505264 is a wasteful number, since it uses less digits than its factorization.

3257505264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5220385 (or 5220379 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 39.

The square root of 3257505264 is about 57074.5588156404. The cubic root of 3257505264 is about 1482.3873789059.

The spelling of 3257505264 in words is "three billion, two hundred fifty-seven million, five hundred five thousand, two hundred sixty-four".