53490625 has 12 divisors (see below), whose sum is σ = 66862908. Its totient is φ = 42790000.

The previous prime is 53490623. The next prime is 53490637. The reversal of 53490625 is 52609435.

It can be written as a sum of positive squares in 6 ways, for example, as 53333809 + 156816 = 7303^2 + 396^2 .

It is not a de Polignac number, because 53490625 - 2¹ = 53490623 is a prime.

It is a super-2 number, since 2×53490625² = 5722493925781250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53490623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5434 + ... + 11683.

It is an arithmetic number, because the mean of its divisors is an integer number (5571909).

Almost surely, 2^53490625 is an apocalyptic number.

It is an amenable number.

53490625 is a deficient number, since it is larger than the sum of its proper divisors (13372283).

53490625 is an frugal number, since it uses more digits than its factorization.

53490625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17142 (or 17122 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 53490625 is about 7313.7285292797. The cubic root of 53490625 is about 376.7840911816.

The spelling of 53490625 in words is "fifty-three million, four hundred ninety thousand, six hundred twenty-five".