64360057 has 4 divisors (see below), whose sum is σ = 66099556. Its totient is φ = 62620560.

The previous prime is 64360039. The next prime is 64360067. The reversal of 64360057 is 75006346.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56385081 + 7974976 = 7509^2 + 2824^2 .

It is a cyclic number.

It is not a de Polignac number, because 64360057 - 2⁷ = 64359929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64360067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869694 + ... + 869767.

It is an arithmetic number, because the mean of its divisors is an integer number (16524889).

Almost surely, 2^64360057 is an apocalyptic number.

It is an amenable number.

64360057 is a deficient number, since it is larger than the sum of its proper divisors (1739499).

64360057 is a wasteful number, since it uses less digits than its factorization.

64360057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739498.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 64360057 is about 8022.4720005744. The cubic root of 64360057 is about 400.7487164348.

The spelling of 64360057 in words is "sixty-four million, three hundred sixty thousand, fifty-seven".