2540625692 has 24 divisors (see below), whose sum is σ = 4860937200. Its totient is φ = 1152293760.

The previous prime is 2540625629. The next prime is 2540625713. The reversal of 2540625692 is 2965260452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43067 + ... + 83282.

It is an arithmetic number, because the mean of its divisors is an integer number (202539050).

Almost surely, 2^2540625692 is an apocalyptic number.

2540625692 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2540625692 is a deficient number, since it is larger than the sum of its proper divisors (2320311508).

2540625692 is a wasteful number, since it uses less digits than its factorization.

2540625692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126821 (or 126819 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 2540625692 is about 50404.6197485905. The cubic root of 2540625692 is about 1364.5210146576.

The spelling of 2540625692 in words is "two billion, five hundred forty million, six hundred twenty-five thousand, six hundred ninety-two".