53398925 has 6 divisors (see below), whose sum is σ = 66214698. Its totient is φ = 42719120.

The previous prime is 53398903. The next prime is 53398979. The reversal of 53398925 is 52989335.

It can be written as a sum of positive squares in 3 ways, for example, as 5885476 + 47513449 = 2426^2 + 6893^2 .

It is not a de Polignac number, because 53398925 - 2¹⁴ = 53382541 is a prime.

It is a Duffinian number.

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, 1067954 + ... + 1068003.

It is an arithmetic number, because the mean of its divisors is an integer number (11035783).

Almost surely, 2^53398925 is an apocalyptic number.

It is an amenable number.

53398925 is a deficient number, since it is larger than the sum of its proper divisors (12815773).

53398925 is a wasteful number, since it uses less digits than its factorization.

53398925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135967 (or 2135962 counting only the distinct ones).

The product of its digits is 291600, while the sum is 44.

The square root of 53398925 is about 7307.4568079463. The cubic root of 53398925 is about 376.5686586402.

The spelling of 53398925 in words is "fifty-three million, three hundred ninety-eight thousand, nine hundred twenty-five".