652400057 has 2 divisors, whose sum is σ = 652400058. Its totient is φ = 652400056.

The previous prime is 652400033. The next prime is 652400059. The reversal of 652400057 is 750004256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 556771216 + 95628841 = 23596^2 + 9779^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-652400057 is a prime.

Together with 652400059, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_33911615 and since 652400057 and 33911615 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (652400059) 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 as a sum of consecutive naturals, namely, 326200028 + 326200029.

It is an arithmetic number, because the mean of its divisors is an integer number (326200029).

Almost surely, 2^652400057 is an apocalyptic number.

It is an amenable number.

652400057 is a deficient number, since it is larger than the sum of its proper divisors (1).

652400057 is an equidigital number, since it uses as much as digits as its factorization.

652400057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 652400057 is about 25542.1231889598. The cubic root of 652400057 is about 867.3039615491.

The spelling of 652400057 in words is "six hundred fifty-two million, four hundred thousand, fifty-seven".