225779977522 has 48 divisors (see below), whose sum is σ = 374062201632. Its totient is φ = 101363600000.

The previous prime is 225779977513. The next prime is 225779977529.

225779977522 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (225779977529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116922897 + ... + 116924827.

It is an arithmetic number, because the mean of its divisors is an integer number (7792962534).

Almost surely, 2^225779977522 is an apocalyptic number.

225779977522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

225779977522 is a deficient number, since it is larger than the sum of its proper divisors (148282224110).

225779977522 is a wasteful number, since it uses less digits than its factorization.

225779977522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2667 (or 2566 counting only the distinct ones).

The product of its digits is 77792400, while the sum is 64.

The spelling of 225779977522 in words is "two hundred twenty-five billion, seven hundred seventy-nine million, nine hundred seventy-seven thousand, five hundred twenty-two".