53040725 has 12 divisors (see below), whose sum is σ = 65902404. Its totient is φ = 42347520.

The previous prime is 53040683. The next prime is 53040727. The reversal of 53040725 is 52704035.

53040725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 6895876 + 46144849 = 2626^2 + 6793^2 .

It is not a de Polignac number, because 53040725 - 2²⁴ = 36263509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53040694 and 53040703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53040727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12587 + ... + 16263.

It is an arithmetic number, because the mean of its divisors is an integer number (5491867).

Almost surely, 2^53040725 is an apocalyptic number.

It is an amenable number.

53040725 is a deficient number, since it is larger than the sum of its proper divisors (12861679).

53040725 is a wasteful number, since it uses less digits than its factorization.

53040725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4264 (or 4259 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 53040725 is about 7282.9063566683. The cubic root of 53040725 is about 375.7247613166.

The spelling of 53040725 in words is "fifty-three million, forty thousand, seven hundred twenty-five".