53018725 has 12 divisors (see below), whose sum is σ = 65838916. Its totient is φ = 42353280.

The previous prime is 53018723. The next prime is 53018729. The reversal of 53018725 is 52781035.

It can be written as a sum of positive squares in 6 ways, for example, as 1437601 + 51581124 = 1199^2 + 7182^2 .

It is not a de Polignac number, because 53018725 - 2¹ = 53018723 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 (53018723) 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, 24799 + ... + 26851.

Almost surely, 2^53018725 is an apocalyptic number.

It is an amenable number.

53018725 is a deficient number, since it is larger than the sum of its proper divisors (12820191).

53018725 is a wasteful number, since it uses less digits than its factorization.

53018725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3096 (or 3091 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 53018725 is about 7281.3958139906. The cubic root of 53018725 is about 375.6728069750.

The spelling of 53018725 in words is "fifty-three million, eighteen thousand, seven hundred twenty-five".