2557157229 has 32 divisors (see below), whose sum is σ = 4191022080. Its totient is φ = 1527951600.

The previous prime is 2557157219. The next prime is 2557157257. The reversal of 2557157229 is 9227517552.

2557157229 is a `hidden beast` number, since 2 + 5 + 5 + 71 + 572 + 2 + 9 = 666.

It is not a de Polignac number, because 2557157229 - 2⁷ = 2557157101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557157219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39547 + ... + 81720.

It is an arithmetic number, because the mean of its divisors is an integer number (130969440).

Almost surely, 2^2557157229 is an apocalyptic number.

It is an amenable number.

2557157229 is a deficient number, since it is larger than the sum of its proper divisors (1633864851).

2557157229 is a wasteful number, since it uses less digits than its factorization.

2557157229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121358 (or 121352 counting only the distinct ones).

The product of its digits is 441000, while the sum is 45.

The square root of 2557157229 is about 50568.3421618704. The cubic root of 2557157229 is about 1367.4742083330.

The spelling of 2557157229 in words is "two billion, five hundred fifty-seven million, one hundred fifty-seven thousand, two hundred twenty-nine".