57554977 has 2 divisors, whose sum is σ = 57554978. Its totient is φ = 57554976.

The previous prime is 57554969. The next prime is 57554989. The reversal of 57554977 is 77945575.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57395776 + 159201 = 7576^2 + 399^2 .

It is a cyclic number.

It is not a de Polignac number, because 57554977 - 2³ = 57554969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57554977.

It is not a weakly prime, because it can be changed into another prime (57554957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28777488 + 28777489.

It is an arithmetic number, because the mean of its divisors is an integer number (28777489).

Almost surely, 2^57554977 is an apocalyptic number.

It is an amenable number.

57554977 is a deficient number, since it is larger than the sum of its proper divisors (1).

57554977 is an equidigital number, since it uses as much as digits as its factorization.

57554977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1543500, while the sum is 49.

The square root of 57554977 is about 7586.4996539906. The cubic root of 57554977 is about 386.0951043992.

The spelling of 57554977 in words is "fifty-seven million, five hundred fifty-four thousand, nine hundred seventy-seven".