52520251 has 8 divisors (see below), whose sum is σ = 60083424. Its totient is φ = 44972160.

The previous prime is 52520219. The next prime is 52520257. The reversal of 52520251 is 15202525.

52520251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52520251 - 2⁵ = 52520219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52520257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5091 + ... + 11443.

It is an arithmetic number, because the mean of its divisors is an integer number (7510428).

Almost surely, 2^52520251 is an apocalyptic number.

52520251 is a deficient number, since it is larger than the sum of its proper divisors (7563173).

52520251 is a wasteful number, since it uses less digits than its factorization.

52520251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7541.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 52520251 is about 7247.0856901240. The cubic root of 52520251 is about 374.4917583003.

Adding to 52520251 its reverse (15202525), we get a palindrome (67722776).

The spelling of 52520251 in words is "fifty-two million, five hundred twenty thousand, two hundred fifty-one".