52557641 has 2 divisors, whose sum is σ = 52557642. Its totient is φ = 52557640.

The previous prime is 52557623. The next prime is 52557671. The reversal of 52557641 is 14675525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35952016 + 16605625 = 5996^2 + 4075^2 .

It is a cyclic number.

It is not a de Polignac number, because 52557641 - 2¹⁰ = 52556617 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52557601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26278820 + 26278821.

It is an arithmetic number, because the mean of its divisors is an integer number (26278821).

Almost surely, 2^52557641 is an apocalyptic number.

It is an amenable number.

52557641 is a deficient number, since it is larger than the sum of its proper divisors (1).

52557641 is an equidigital number, since it uses as much as digits as its factorization.

52557641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42000, while the sum is 35.

The square root of 52557641 is about 7249.6648888069. The cubic root of 52557641 is about 374.5806060945.

The spelling of 52557641 in words is "fifty-two million, five hundred fifty-seven thousand, six hundred forty-one".