57775897 has 4 divisors (see below), whose sum is σ = 57928720. Its totient is φ = 57623076.

The previous prime is 57775891. The next prime is 57775943. The reversal of 57775897 is 79857775.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57775897 - 2³ = 57775889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57775891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75843 + ... + 76600.

It is an arithmetic number, because the mean of its divisors is an integer number (14482180).

Almost surely, 2^57775897 is an apocalyptic number.

It is an amenable number.

57775897 is a deficient number, since it is larger than the sum of its proper divisors (152823).

57775897 is a wasteful number, since it uses less digits than its factorization.

57775897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152822.

The product of its digits is 4321800, while the sum is 55.

The square root of 57775897 is about 7601.0457833117. The cubic root of 57775897 is about 386.5884716862.

The spelling of 57775897 in words is "fifty-seven million, seven hundred seventy-five thousand, eight hundred ninety-seven".