64125599 has 8 divisors (see below), whose sum is σ = 67219152. Its totient is φ = 61104960.

The previous prime is 64125569. The next prime is 64125619. The reversal of 64125599 is 99552146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64125599 is a prime.

It is a super-2 number, since 2×64125599² = 8224184894217602, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64125569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16424 + ... + 19949.

It is an arithmetic number, because the mean of its divisors is an integer number (8402394).

Almost surely, 2^64125599 is an apocalyptic number.

64125599 is a deficient number, since it is larger than the sum of its proper divisors (3093553).

64125599 is a wasteful number, since it uses less digits than its factorization.

64125599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36457.

The product of its digits is 97200, while the sum is 41.

The square root of 64125599 is about 8007.8460899296. The cubic root of 64125599 is about 400.2614935988.

The spelling of 64125599 in words is "sixty-four million, one hundred twenty-five thousand, five hundred ninety-nine".