52660251 has 36 divisors (see below), whose sum is σ = 90573912. Its totient is φ = 29381184.

The previous prime is 52660249. The next prime is 52660253. The reversal of 52660251 is 15206625.

52660251 is a `hidden beast` number, since 5 + 2 + 6 + 602 + 51 = 666.

It is an interprime number because it is at equal distance from previous prime (52660249) and next prime (52660253).

It is not a de Polignac number, because 52660251 - 2¹ = 52660249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52660253) 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 35 ways as a sum of consecutive naturals, for example, 17575 + ... + 20351.

It is an arithmetic number, because the mean of its divisors is an integer number (2515942).

Almost surely, 2^52660251 is an apocalyptic number.

52660251 is a deficient number, since it is larger than the sum of its proper divisors (37913661).

52660251 is a wasteful number, since it uses less digits than its factorization.

52660251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2840 (or 2830 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 52660251 is about 7256.7383169024. The cubic root of 52660251 is about 374.8242162798.

Adding to 52660251 its reverse (15206625), we get a palindrome (67866876).

The spelling of 52660251 in words is "fifty-two million, six hundred sixty thousand, two hundred fifty-one".