53972057 has 2 divisors, whose sum is σ = 53972058. Its totient is φ = 53972056.

The previous prime is 53972041. The next prime is 53972063. The reversal of 53972057 is 75027935.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48288601 + 5683456 = 6949^2 + 2384^2 .

It is a cyclic number.

It is not a de Polignac number, because 53972057 - 2⁴ = 53972041 is a prime.

It is a super-2 number, since 2×53972057² = 5825965873622498, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53972057.

It is not a weakly prime, because it can be changed into another prime (53972357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26986028 + 26986029.

It is an arithmetic number, because the mean of its divisors is an integer number (26986029).

Almost surely, 2^53972057 is an apocalyptic number.

It is an amenable number.

53972057 is a deficient number, since it is larger than the sum of its proper divisors (1).

53972057 is an equidigital number, since it uses as much as digits as its factorization.

53972057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 66150, while the sum is 38.

The square root of 53972057 is about 7346.5677019953. The cubic root of 53972057 is about 377.9111074717.

The spelling of 53972057 in words is "fifty-three million, nine hundred seventy-two thousand, fifty-seven".