64125792 has 36 divisors (see below), whose sum is σ = 182358540. Its totient is φ = 21375168.

The previous prime is 64125781. The next prime is 64125797. The reversal of 64125792 is 29752146.

64125792 is a `hidden beast` number, since 641 + 2 + 5 + 7 + 9 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×64125792² = 8224234399254528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64125797) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111042 + ... + 111617.

It is an arithmetic number, because the mean of its divisors is an integer number (5065515).

Almost surely, 2^64125792 is an apocalyptic number.

It is an amenable number.

64125792 is an abundant number, since it is smaller than the sum of its proper divisors (118232748).

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

64125792 is a wasteful number, since it uses less digits than its factorization.

64125792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222675 (or 222664 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 64125792 is about 8007.8581406016. The cubic root of 64125792 is about 400.2618951566.

The spelling of 64125792 in words is "sixty-four million, one hundred twenty-five thousand, seven hundred ninety-two".