63572857 has 2 divisors, whose sum is σ = 63572858. Its totient is φ = 63572856.

The previous prime is 63572827. The next prime is 63572863. The reversal of 63572857 is 75827536.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52577001 + 10995856 = 7251^2 + 3316^2 .

It is a cyclic number.

It is not a de Polignac number, because 63572857 - 2¹⁵ = 63540089 is a prime.

It is not a weakly prime, because it can be changed into another prime (63572807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31786428 + 31786429.

It is an arithmetic number, because the mean of its divisors is an integer number (31786429).

Almost surely, 2^63572857 is an apocalyptic number.

It is an amenable number.

63572857 is a deficient number, since it is larger than the sum of its proper divisors (1).

63572857 is an equidigital number, since it uses as much as digits as its factorization.

63572857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352800, while the sum is 43.

The square root of 63572857 is about 7973.2588694962. The cubic root of 63572857 is about 399.1081316551.

The spelling of 63572857 in words is "sixty-three million, five hundred seventy-two thousand, eight hundred fifty-seven".