52553251 has 4 divisors (see below), whose sum is σ = 52569904. Its totient is φ = 52536600.

The previous prime is 52553233. The next prime is 52553257. The reversal of 52553251 is 15235525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52553251 - 2¹⁵ = 52520483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52553257) 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, 1980 + ... + 10441.

It is an arithmetic number, because the mean of its divisors is an integer number (13142476).

Almost surely, 2^52553251 is an apocalyptic number.

52553251 is a deficient number, since it is larger than the sum of its proper divisors (16653).

52553251 is a wasteful number, since it uses less digits than its factorization.

52553251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16652.

The product of its digits is 7500, while the sum is 28.

The square root of 52553251 is about 7249.3621098687. The cubic root of 52553251 is about 374.5701765634.

Adding to 52553251 its reverse (15235525), we get a palindrome (67788776).

The spelling of 52553251 in words is "fifty-two million, five hundred fifty-three thousand, two hundred fifty-one".