52506253 has 4 divisors (see below), whose sum is σ = 55269760. Its totient is φ = 49742748.

The previous prime is 52506247. The next prime is 52506257. The reversal of 52506253 is 35260525.

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 a cyclic number.

It is not a de Polignac number, because 52506253 - 2⁵ = 52506221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52506257) 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, 1381725 + ... + 1381762.

It is an arithmetic number, because the mean of its divisors is an integer number (13817440).

Almost surely, 2^52506253 is an apocalyptic number.

It is an amenable number.

52506253 is a deficient number, since it is larger than the sum of its proper divisors (2763507).

52506253 is a wasteful number, since it uses less digits than its factorization.

52506253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763506.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 52506253 is about 7246.1198582414. The cubic root of 52506253 is about 374.4584847768.

Adding to 52506253 its reverse (35260525), we get a palindrome (87766778).

The spelling of 52506253 in words is "fifty-two million, five hundred six thousand, two hundred fifty-three".