52307261 has 4 divisors (see below), whose sum is σ = 53994624. Its totient is φ = 50619900.

The previous prime is 52307251. The next prime is 52307273. The reversal of 52307261 is 16270325.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 52307261 - 2¹⁸ = 52045117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52307261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52307231) 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, 843635 + ... + 843696.

It is an arithmetic number, because the mean of its divisors is an integer number (13498656).

Almost surely, 2^52307261 is an apocalyptic number.

It is an amenable number.

52307261 is a deficient number, since it is larger than the sum of its proper divisors (1687363).

52307261 is a wasteful number, since it uses less digits than its factorization.

52307261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687362.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 52307261 is about 7232.3758890146. The cubic root of 52307261 is about 373.9848359547.

Adding to 52307261 its reverse (16270325), we get a palindrome (68577586).

The spelling of 52307261 in words is "fifty-two million, three hundred seven thousand, two hundred sixty-one".