522648251 has 16 divisors (see below), whose sum is σ = 565014528. Its totient is φ = 482037600.

The previous prime is 522648209. The next prime is 522648281. The reversal of 522648251 is 152846225.

It is not a de Polignac number, because 522648251 - 2¹⁸ = 522386107 is a prime.

It is a super-2 number, since 2×522648251² = 546322388546718002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522648281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220565 + ... + 222921.

It is an arithmetic number, because the mean of its divisors is an integer number (35313408).

Almost surely, 2^522648251 is an apocalyptic number.

522648251 is a deficient number, since it is larger than the sum of its proper divisors (42366277).

522648251 is a wasteful number, since it uses less digits than its factorization.

522648251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2722.

The product of its digits is 38400, while the sum is 35.

The square root of 522648251 is about 22861.5015036196. The cubic root of 522648251 is about 805.5079550710.

The spelling of 522648251 in words is "five hundred twenty-two million, six hundred forty-eight thousand, two hundred fifty-one".