52531625 has 8 divisors (see below), whose sum is σ = 65559624. Its totient is φ = 42025200.

The previous prime is 52531621. The next prime is 52531631. The reversal of 52531625 is 52613525.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1993744 + 50537881 = 1412^2 + 7109^2 .

It is not a de Polignac number, because 52531625 - 2² = 52531621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52531621) 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 7 ways as a sum of consecutive naturals, for example, 210002 + ... + 210251.

It is an arithmetic number, because the mean of its divisors is an integer number (8194953).

Almost surely, 2^52531625 is an apocalyptic number.

It is an amenable number.

52531625 is a deficient number, since it is larger than the sum of its proper divisors (13027999).

52531625 is an equidigital number, since it uses as much as digits as its factorization.

52531625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420268 (or 420258 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 52531625 is about 7247.8703768762. The cubic root of 52531625 is about 374.5187901705.

The spelling of 52531625 in words is "fifty-two million, five hundred thirty-one thousand, six hundred twenty-five".