53651625 has 32 divisors (see below), whose sum is σ = 89900928. Its totient is φ = 28414400.

The previous prime is 53651621. The next prime is 53651629. The reversal of 53651625 is 52615635.

It is an interprime number because it is at equal distance from previous prime (53651621) and next prime (53651629).

It is not a de Polignac number, because 53651625 - 2² = 53651621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53651621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64462 + ... + 65288.

It is an arithmetic number, because the mean of its divisors is an integer number (2809404).

Almost surely, 2^53651625 is an apocalyptic number.

It is an amenable number.

53651625 is a deficient number, since it is larger than the sum of its proper divisors (36249303).

53651625 is a wasteful number, since it uses less digits than its factorization.

53651625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018 (or 1008 counting only the distinct ones).

The product of its digits is 27000, while the sum is 33.

The square root of 53651625 is about 7324.7269573684. The cubic root of 53651625 is about 377.1617366623.

The spelling of 53651625 in words is "fifty-three million, six hundred fifty-one thousand, six hundred twenty-five".