53055857 has 2 divisors, whose sum is σ = 53055858. Its totient is φ = 53055856.

The previous prime is 53055839. The next prime is 53055881. The reversal of 53055857 is 75855035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48385936 + 4669921 = 6956^2 + 2161^2 .

It is a cyclic number.

It is not a de Polignac number, because 53055857 - 2²⁰ = 52007281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53055857.

It is not a weakly prime, because it can be changed into another prime (53055887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26527928 + 26527929.

It is an arithmetic number, because the mean of its divisors is an integer number (26527929).

Almost surely, 2^53055857 is an apocalyptic number.

It is an amenable number.

53055857 is a deficient number, since it is larger than the sum of its proper divisors (1).

53055857 is an equidigital number, since it uses as much as digits as its factorization.

53055857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105000, while the sum is 38.

The square root of 53055857 is about 7283.9451535552. The cubic root of 53055857 is about 375.7604881191.

The spelling of 53055857 in words is "fifty-three million, fifty-five thousand, eight hundred fifty-seven".