2557113207 has 64 divisors (see below), whose sum is σ = 3923707392. Its totient is φ = 1479878400.

The previous prime is 2557113203. The next prime is 2557113211. The reversal of 2557113207 is 7023117552.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2557113203) and next prime (2557113211).

It is not a de Polignac number, because 2557113207 - 2² = 2557113203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557113203) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9099907 + ... + 9100187.

It is an arithmetic number, because the mean of its divisors is an integer number (61307928).

Almost surely, 2^2557113207 is an apocalyptic number.

2557113207 is a deficient number, since it is larger than the sum of its proper divisors (1366594185).

2557113207 is a wasteful number, since it uses less digits than its factorization.

2557113207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 33.

The square root of 2557113207 is about 50567.9068876694. The cubic root of 2557113207 is about 1367.4663611692.

The spelling of 2557113207 in words is "two billion, five hundred fifty-seven million, one hundred thirteen thousand, two hundred seven".