2557685001 has 16 divisors (see below), whose sum is σ = 3545575488. Its totient is φ = 1638700800.

The previous prime is 2557684999. The next prime is 2557685047. The reversal of 2557685001 is 1005867552.

It is not a de Polignac number, because 2557685001 - 2¹ = 2557684999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2557685201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146940 + ... + 163421.

It is an arithmetic number, because the mean of its divisors is an integer number (221598468).

Almost surely, 2^2557685001 is an apocalyptic number.

It is an amenable number.

2557685001 is a deficient number, since it is larger than the sum of its proper divisors (987890487).

2557685001 is a wasteful number, since it uses less digits than its factorization.

2557685001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310472.

The product of its (nonzero) digits is 84000, while the sum is 39.

The square root of 2557685001 is about 50573.5602958700. The cubic root of 2557685001 is about 1367.5682795858.

The spelling of 2557685001 in words is "two billion, five hundred fifty-seven million, six hundred eighty-five thousand, one".