525251222 has 4 divisors (see below), whose sum is σ = 787876836. Its totient is φ = 262625610.

The previous prime is 525251191. The next prime is 525251231. The reversal of 525251222 is 222152525.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 525251191 and 525251200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131312804 + ... + 131312807.

It is an arithmetic number, because the mean of its divisors is an integer number (196969209).

Almost surely, 2^525251222 is an apocalyptic number.

525251222 is a deficient number, since it is larger than the sum of its proper divisors (262625614).

525251222 is a wasteful number, since it uses less digits than its factorization.

525251222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262625613.

The product of its digits is 4000, while the sum is 26.

The square root of 525251222 is about 22918.3599325955. The cubic root of 525251222 is about 806.8429782936.

The spelling of 525251222 in words is "five hundred twenty-five million, two hundred fifty-one thousand, two hundred twenty-two".