2057386157 has 4 divisors (see below), whose sum is σ = 2073586176. Its totient is φ = 2041186140.

The previous prime is 2057386153. The next prime is 2057386159. The reversal of 2057386157 is 7516837502.

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 2057386157 - 2² = 2057386153 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 (2057386153) 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, 8099819 + ... + 8100072.

It is an arithmetic number, because the mean of its divisors is an integer number (518396544).

Almost surely, 2^2057386157 is an apocalyptic number.

It is an amenable number.

2057386157 is a deficient number, since it is larger than the sum of its proper divisors (16200019).

2057386157 is a wasteful number, since it uses less digits than its factorization.

2057386157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16200018.

The product of its (nonzero) digits is 352800, while the sum is 44.

The square root of 2057386157 is about 45358.4188106243. The cubic root of 2057386157 is about 1271.8579367881.

The spelling of 2057386157 in words is "two billion, fifty-seven million, three hundred eighty-six thousand, one hundred fifty-seven".