52317551 has 16 divisors (see below), whose sum is σ = 65082528. Its totient is φ = 41318400.

The previous prime is 52317547. The next prime is 52317563. The reversal of 52317551 is 15571325.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 52317551 - 2² = 52317547 is a prime.

It is a super-2 number, since 2×52317551² = 5474252285275202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52317521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8330 + ... + 13191.

It is an arithmetic number, because the mean of its divisors is an integer number (4067658).

Almost surely, 2^52317551 is an apocalyptic number.

52317551 is a deficient number, since it is larger than the sum of its proper divisors (12764977).

52317551 is a wasteful number, since it uses less digits than its factorization.

52317551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21562.

The product of its digits is 5250, while the sum is 29.

The square root of 52317551 is about 7233.0872385172. The cubic root of 52317551 is about 374.0093580546.

Adding to 52317551 its reverse (15571325), we get a palindrome (67888876).

The spelling of 52317551 in words is "fifty-two million, three hundred seventeen thousand, five hundred fifty-one".