57077157 has 4 divisors (see below), whose sum is σ = 76102880. Its totient is φ = 38051436.

The previous prime is 57077147. The next prime is 57077171. The reversal of 57077157 is 75177075.

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 not a de Polignac number, because 57077157 - 2¹² = 57073061 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 (57077147) 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, 9512857 + ... + 9512862.

It is an arithmetic number, because the mean of its divisors is an integer number (19025720).

Almost surely, 2^57077157 is an apocalyptic number.

It is an amenable number.

57077157 is a deficient number, since it is larger than the sum of its proper divisors (19025723).

57077157 is a wasteful number, since it uses less digits than its factorization.

57077157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19025722.

The product of its (nonzero) digits is 60025, while the sum is 39.

The square root of 57077157 is about 7554.9425543812. The cubic root of 57077157 is about 385.0236832567.

The spelling of 57077157 in words is "fifty-seven million, seventy-seven thousand, one hundred fifty-seven".