64252899 has 8 divisors (see below), whose sum is σ = 95189520. Its totient is φ = 42835248.

The previous prime is 64252891. The next prime is 64252919. The reversal of 64252899 is 99825246.

It is not a de Polignac number, because 64252899 - 2³ = 64252891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64252891) 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, 1189842 + ... + 1189895.

It is an arithmetic number, because the mean of its divisors is an integer number (11898690).

Almost surely, 2^64252899 is an apocalyptic number.

64252899 is a deficient number, since it is larger than the sum of its proper divisors (30936621).

64252899 is a wasteful number, since it uses less digits than its factorization.

64252899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379746 (or 2379740 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 64252899 is about 8015.7906035525. The cubic root of 64252899 is about 400.5261804485.

The spelling of 64252899 in words is "sixty-four million, two hundred fifty-two thousand, eight hundred ninety-nine".