2638741525 has 24 divisors (see below), whose sum is σ = 3752757824. Its totient is φ = 1802995200.

The previous prime is 2638741517. The next prime is 2638741531. The reversal of 2638741525 is 5251478362.

It is not a de Polignac number, because 2638741525 - 2³ = 2638741517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22885 + ... + 76165.

Almost surely, 2^2638741525 is an apocalyptic number.

2638741525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2638741525 is a deficient number, since it is larger than the sum of its proper divisors (1114016299).

2638741525 is a wasteful number, since it uses less digits than its factorization.

2638741525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53581 (or 53576 counting only the distinct ones).

The product of its digits is 403200, while the sum is 43.

The square root of 2638741525 is about 51368.6823366144. The cubic root of 2638741525 is about 1381.8650001155.

The spelling of 2638741525 in words is "two billion, six hundred thirty-eight million, seven hundred forty-one thousand, five hundred twenty-five".