52665251 has 4 divisors (see below), whose sum is σ = 52680600. Its totient is φ = 52649904.

The previous prime is 52665233. The next prime is 52665257. The reversal of 52665251 is 15256625.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52665251 - 2¹⁸ = 52403107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52665257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95 + ... + 10263.

It is an arithmetic number, because the mean of its divisors is an integer number (13170150).

Almost surely, 2^52665251 is an apocalyptic number.

52665251 is a deficient number, since it is larger than the sum of its proper divisors (15349).

52665251 is a wasteful number, since it uses less digits than its factorization.

52665251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15348.

The product of its digits is 18000, while the sum is 32.

The square root of 52665251 is about 7257.0828161183. The cubic root of 52665251 is about 374.8360788753.

The spelling of 52665251 in words is "fifty-two million, six hundred sixty-five thousand, two hundred fifty-one".