57420877 has 4 divisors (see below), whose sum is σ = 57442176. Its totient is φ = 57399580.

The previous prime is 57420859. The next prime is 57420893. The reversal of 57420877 is 77802475.

57420877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-57420877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57420827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5899 + ... + 12232.

It is an arithmetic number, because the mean of its divisors is an integer number (14360544).

Almost surely, 2^57420877 is an apocalyptic number.

It is an amenable number.

57420877 is a deficient number, since it is larger than the sum of its proper divisors (21299).

57420877 is a wasteful number, since it uses less digits than its factorization.

57420877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21298.

The product of its (nonzero) digits is 109760, while the sum is 40.

The square root of 57420877 is about 7577.6564319056. The cubic root of 57420877 is about 385.7950109373.

The spelling of 57420877 in words is "fifty-seven million, four hundred twenty thousand, eight hundred seventy-seven".