522252225 has 96 divisors (see below), whose sum is σ = 1075466880. Its totient is φ = 246240000.

The previous prime is 522252197. The next prime is 522252229.

522252225 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 522252225 - 2⁵ = 522252193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (522252229) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 273775 + ... + 275675.

It is an arithmetic number, because the mean of its divisors is an integer number (11202780).

Almost surely, 2^522252225 is an apocalyptic number.

522252225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

522252225 is an abundant number, since it is smaller than the sum of its proper divisors (553214655).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

522252225 is a wasteful number, since it uses less digits than its factorization.

522252225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968 (or 1957 counting only the distinct ones).

The product of its digits is 8000, while the sum is 27.

The square root of 522252225 is about 22852.8384451472. The cubic root of 522252225 is about 805.3044512810.

The spelling of 522252225 in words is "five hundred twenty-two million, two hundred fifty-two thousand, two hundred twenty-five".