57251377 has 4 divisors (see below), whose sum is σ = 57271396. Its totient is φ = 57231360.

The previous prime is 57251357. The next prime is 57251387. The reversal of 57251377 is 77315275.

57251377 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 1540081 + 55711296 = 1241^2 + 7464^2 .

It is a cyclic number.

It is not a de Polignac number, because 57251377 - 2¹⁹ = 56727089 is a prime.

It is a super-2 number, since 2×57251377² = 6555440336792258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57251317) 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, 4824 + ... + 11737.

It is an arithmetic number, because the mean of its divisors is an integer number (14317849).

Almost surely, 2^57251377 is an apocalyptic number.

57251377 is the 4369-th hex number.

It is an amenable number.

57251377 is a deficient number, since it is larger than the sum of its proper divisors (20019).

57251377 is a wasteful number, since it uses less digits than its factorization.

57251377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20018.

The product of its digits is 51450, while the sum is 37.

The square root of 57251377 is about 7566.4639693849. The cubic root of 57251377 is about 385.4150289108.

The spelling of 57251377 in words is "fifty-seven million, two hundred fifty-one thousand, three hundred seventy-seven".