64522957 has 2 divisors, whose sum is σ = 64522958. Its totient is φ = 64522956.

The previous prime is 64522951. The next prime is 64522961. The reversal of 64522957 is 75922546.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58277956 + 6245001 = 7634^2 + 2499^2 .

It is a cyclic number.

It is not a de Polignac number, because 64522957 - 2³ = 64522949 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64522951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32261478 + 32261479.

It is an arithmetic number, because the mean of its divisors is an integer number (32261479).

Almost surely, 2^64522957 is an apocalyptic number.

It is an amenable number.

64522957 is a deficient number, since it is larger than the sum of its proper divisors (1).

64522957 is an equidigital number, since it uses as much as digits as its factorization.

64522957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 40.

The square root of 64522957 is about 8032.6183153440. The cubic root of 64522957 is about 401.0865396566.

It can be divided in two parts, 6452 and 2957, that added together give a square (9409 = 97²).

The spelling of 64522957 in words is "sixty-four million, five hundred twenty-two thousand, nine hundred fifty-seven".