5651640525 has 12 divisors (see below), whose sum is σ = 9344045792. Its totient is φ = 3014208240.

The previous prime is 5651640493. The next prime is 5651640529. The reversal of 5651640525 is 5250461565.

It is a happy number.

It is not a de Polignac number, because 5651640525 - 2⁵ = 5651640493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5651640529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37677529 + ... + 37677678.

Almost surely, 2^5651640525 is an apocalyptic number.

It is an amenable number.

5651640525 is a deficient number, since it is larger than the sum of its proper divisors (3692405267).

5651640525 is a wasteful number, since it uses less digits than its factorization.

5651640525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75355220 (or 75355215 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 39.

The square root of 5651640525 is about 75177.3937098115. The cubic root of 5651640525 is about 1781.2498612496.

The spelling of 5651640525 in words is "five billion, six hundred fifty-one million, six hundred forty thousand, five hundred twenty-five".