2587643325 has 18 divisors (see below), whose sum is σ = 4634757114. Its totient is φ = 1380076320.

The previous prime is 2587643309. The next prime is 2587643339. The reversal of 2587643325 is 5233467852.

2587643325 is a `hidden beast` number, since 2 + 587 + 6 + 43 + 3 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 78535044 + 2509108281 = 8862^2 + 50091^2 .

It is not a de Polignac number, because 2587643325 - 2⁴ = 2587643309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5750094 + ... + 5750543.

Almost surely, 2^2587643325 is an apocalyptic number.

2587643325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2587643325 is a deficient number, since it is larger than the sum of its proper divisors (2047113789).

2587643325 is a wasteful number, since it uses less digits than its factorization.

2587643325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11500653 (or 11500645 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 45.

The square root of 2587643325 is about 50868.8836618222. The cubic root of 2587643325 is about 1372.8870378705.

The spelling of 2587643325 in words is "two billion, five hundred eighty-seven million, six hundred forty-three thousand, three hundred twenty-five".