525222012 has 48 divisors (see below), whose sum is σ = 1424344320. Its totient is φ = 147518592.

The previous prime is 525222001. The next prime is 525222031. The reversal of 525222012 is 210222525.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 525222012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48033 + ... + 57944.

It is an arithmetic number, because the mean of its divisors is an integer number (29673840).

Almost surely, 2^525222012 is an apocalyptic number.

It is an amenable number.

525222012 is an abundant number, since it is smaller than the sum of its proper divisors (899122308).

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

525222012 is a wasteful number, since it uses less digits than its factorization.

525222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106050 (or 106048 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 525222012 is about 22917.7226617306. The cubic root of 525222012 is about 806.8280214378.

Adding to 525222012 its reverse (210222525), we get a palindrome (735444537).

The spelling of 525222012 in words is "five hundred twenty-five million, two hundred twenty-two thousand, twelve".