52557767 has 2 divisors, whose sum is σ = 52557768. Its totient is φ = 52557766.

The previous prime is 52557763. The next prime is 52557823. The reversal of 52557767 is 76775525.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52557767 - 2² = 52557763 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52557763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26278883 + 26278884.

It is an arithmetic number, because the mean of its divisors is an integer number (26278884).

Almost surely, 2^52557767 is an apocalyptic number.

52557767 is a deficient number, since it is larger than the sum of its proper divisors (1).

52557767 is an equidigital number, since it uses as much as digits as its factorization.

52557767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 514500, while the sum is 44.

The square root of 52557767 is about 7249.6735788586. The cubic root of 52557767 is about 374.5809054301.

The spelling of 52557767 in words is "fifty-two million, five hundred fifty-seven thousand, seven hundred sixty-seven".