53130725 has 6 divisors (see below), whose sum is σ = 65882130. Its totient is φ = 42504560.

The previous prime is 53130689. The next prime is 53130731. The reversal of 53130725 is 52703135.

It can be written as a sum of positive squares in 3 ways, for example, as 4661281 + 48469444 = 2159^2 + 6962^2 .

It is not a de Polignac number, because 53130725 - 2¹⁶ = 53065189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53130694 and 53130703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1062590 + ... + 1062639.

It is an arithmetic number, because the mean of its divisors is an integer number (10980355).

Almost surely, 2^53130725 is an apocalyptic number.

It is an amenable number.

53130725 is a deficient number, since it is larger than the sum of its proper divisors (12751405).

53130725 is a wasteful number, since it uses less digits than its factorization.

53130725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125239 (or 2125234 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 53130725 is about 7289.0825897365. The cubic root of 53130725 is about 375.9371523334.

The spelling of 53130725 in words is "fifty-three million, one hundred thirty thousand, seven hundred twenty-five".