64360725 has 96 divisors (see below), whose sum is σ = 132741504. Its totient is φ = 27033600.

The previous prime is 64360721. The next prime is 64360741. The reversal of 64360725 is 52706346.

It is not a de Polignac number, because 64360725 - 2² = 64360721 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64360721) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 182149 + ... + 182501.

It is an arithmetic number, because the mean of its divisors is an integer number (1382724).

Almost surely, 2^64360725 is an apocalyptic number.

64360725 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64360725 is an abundant number, since it is smaller than the sum of its proper divisors (68380779).

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

64360725 is a wasteful number, since it uses less digits than its factorization.

64360725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 64360725 is about 8022.5136335191. The cubic root of 64360725 is about 400.7501029015.

The spelling of 64360725 in words is "sixty-four million, three hundred sixty thousand, seven hundred twenty-five".