52661225 has 12 divisors (see below), whose sum is σ = 65705616. Its totient is φ = 41867280.

The previous prime is 52661207. The next prime is 52661233. The reversal of 52661225 is 52216625.

It is a de Polignac number, because none of the positive numbers 2^k-52661225 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2387 + ... + 10536.

It is an arithmetic number, because the mean of its divisors is an integer number (5475468).

Almost surely, 2^52661225 is an apocalyptic number.

It is an amenable number.

52661225 is a deficient number, since it is larger than the sum of its proper divisors (13044391).

52661225 is a wasteful number, since it uses less digits than its factorization.

52661225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13096 (or 13091 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 52661225 is about 7256.8054266323. The cubic root of 52661225 is about 374.8265271723.

The spelling of 52661225 in words is "fifty-two million, six hundred sixty-one thousand, two hundred twenty-five".