53166625 has 8 divisors (see below), whose sum is σ = 66352104. Its totient is φ = 42533200.

The previous prime is 53166587. The next prime is 53166629. The reversal of 53166625 is 52666135.

It can be written as a sum of positive squares in 4 ways, for example, as 153664 + 53012961 = 392^2 + 7281^2 .

It is not a de Polignac number, because 53166625 - 2¹⁷ = 53035553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53166629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212542 + ... + 212791.

It is an arithmetic number, because the mean of its divisors is an integer number (8294013).

Almost surely, 2^53166625 is an apocalyptic number.

It is an amenable number.

53166625 is a deficient number, since it is larger than the sum of its proper divisors (13185479).

53166625 is an equidigital number, since it uses as much as digits as its factorization.

53166625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425348 (or 425338 counting only the distinct ones).

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

The square root of 53166625 is about 7291.5447608857. The cubic root of 53166625 is about 376.0218058313.

The spelling of 53166625 in words is "fifty-three million, one hundred sixty-six thousand, six hundred twenty-five".