64045504 has 56 divisors (see below), whose sum is σ = 138176000. Its totient is φ = 29341440.

The previous prime is 64045493. The next prime is 64045517. The reversal of 64045504 is 40554046.

It is a super-2 number, since 2×64045504² = 8203653165228032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36847 + ... + 38545.

Almost surely, 2^64045504 is an apocalyptic number.

64045504 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64045504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69088000).

64045504 is an abundant number, since it is smaller than the sum of its proper divisors (74130496).

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

64045504 is a wasteful number, since it uses less digits than its factorization.

64045504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761 (or 1751 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 64045504 is about 8002.8434946586. The cubic root of 64045504 is about 400.0947775413.

The spelling of 64045504 in words is "sixty-four million, forty-five thousand, five hundred four".