52550251 has 4 divisors (see below), whose sum is σ = 56592592. Its totient is φ = 48507912.

The previous prime is 52550243. The next prime is 52550261. The reversal of 52550251 is 15205525.

It is a happy number.

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 52550251 - 2³ = 52550243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52550221) 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, 2021151 + ... + 2021176.

It is an arithmetic number, because the mean of its divisors is an integer number (14148148).

Almost surely, 2^52550251 is an apocalyptic number.

52550251 is a deficient number, since it is larger than the sum of its proper divisors (4042341).

52550251 is a wasteful number, since it uses less digits than its factorization.

52550251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4042340.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 52550251 is about 7249.1551921586. The cubic root of 52550251 is about 374.5630489872.

Adding to 52550251 its reverse (15205525), we get a palindrome (67755776).

The spelling of 52550251 in words is "fifty-two million, five hundred fifty thousand, two hundred fifty-one".