64045057 has 2 divisors, whose sum is σ = 64045058. Its totient is φ = 64045056.

The previous prime is 64045049. The next prime is 64045061. The reversal of 64045057 is 75054046.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32729841 + 31315216 = 5721^2 + 5596^2 .

It is a cyclic number.

It is not a de Polignac number, because 64045057 - 2³ = 64045049 is a prime.

It is a super-2 number, since 2×64045057² = 8203538652266498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64045097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32022528 + 32022529.

It is an arithmetic number, because the mean of its divisors is an integer number (32022529).

It is a Proth number, since it is equal to 3909 ⋅ 2¹⁴ + 1 and 3909 < 2¹⁴.

Almost surely, 2^64045057 is an apocalyptic number.

It is an amenable number.

64045057 is a deficient number, since it is larger than the sum of its proper divisors (1).

64045057 is an equidigital number, since it uses as much as digits as its factorization.

64045057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 64045057 is about 8002.8155670364. The cubic root of 64045057 is about 400.0938467303.

The spelling of 64045057 in words is "sixty-four million, forty-five thousand, fifty-seven".