52664261 has 12 divisors (see below), whose sum is σ = 58750692. Its totient is φ = 46927104.

The previous prime is 52664231. The next prime is 52664263. The reversal of 52664261 is 16246625.

It can be written as a sum of positive squares in 6 ways, for example, as 8375236 + 44289025 = 2894^2 + 6655^2 .

It is not a de Polignac number, because 52664261 - 2⁶ = 52664197 is a prime.

It is a super-2 number, since 2×52664261² = 5547048773352242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52664263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8525 + ... + 13341.

It is an arithmetic number, because the mean of its divisors is an integer number (4895891).

Almost surely, 2^52664261 is an apocalyptic number.

It is an amenable number.

52664261 is a deficient number, since it is larger than the sum of its proper divisors (6086431).

52664261 is a wasteful number, since it uses less digits than its factorization.

52664261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4888 (or 4859 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 52664261 is about 7257.0146065720. The cubic root of 52664261 is about 374.8337301410.

It can be divided in two parts, 52664 and 261, that added together give a palindrome (52925).

The spelling of 52664261 in words is "fifty-two million, six hundred sixty-four thousand, two hundred sixty-one".