53722725 has 24 divisors (see below), whose sum is σ = 101511360. Its totient is φ = 24558720.

The previous prime is 53722723. The next prime is 53722729. The reversal of 53722725 is 52722735.

It is not a de Polignac number, because 53722725 - 2¹ = 53722723 is a prime.

It is a super-2 number, since 2×53722725² = 5772262362851250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53722723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50640 + ... + 51689.

It is an arithmetic number, because the mean of its divisors is an integer number (4229640).

Almost surely, 2^53722725 is an apocalyptic number.

It is an amenable number.

53722725 is a deficient number, since it is larger than the sum of its proper divisors (47788635).

53722725 is a wasteful number, since it uses less digits than its factorization.

53722725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102349 (or 102344 counting only the distinct ones).

The product of its digits is 29400, while the sum is 33.

The square root of 53722725 is about 7329.5787737086. The cubic root of 53722725 is about 377.3282700614.

The spelling of 53722725 in words is "fifty-three million, seven hundred twenty-two thousand, seven hundred twenty-five".