57297377 has 4 divisors (see below), whose sum is σ = 58694916. Its totient is φ = 55899840.

The previous prime is 57297353. The next prime is 57297389. The reversal of 57297377 is 77379275.

57297377 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.

It can be written as a sum of positive squares in 2 ways, for example, as 18309841 + 38987536 = 4279^2 + 6244^2 .

It is a cyclic number.

It is not a de Polignac number, because 57297377 - 2⁶ = 57297313 is a prime.

It is a super-2 number, since 2×57297377² = 6565978822160258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57293377) 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, 698708 + ... + 698789.

It is an arithmetic number, because the mean of its divisors is an integer number (14673729).

Almost surely, 2^57297377 is an apocalyptic number.

It is an amenable number.

57297377 is a deficient number, since it is larger than the sum of its proper divisors (1397539).

57297377 is a wasteful number, since it uses less digits than its factorization.

57297377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397538.

The product of its digits is 648270, while the sum is 47.

The square root of 57297377 is about 7569.5030880501. The cubic root of 57297377 is about 385.5182249449.

It can be divided in two parts, 572973 and 77, that multiplied together give a triangular number (44118921 = T₉₃₉₃).

The spelling of 57297377 in words is "fifty-seven million, two hundred ninety-seven thousand, three hundred seventy-seven".