225436634522 has 24 divisors (see below), whose sum is σ = 371807803668. Its totient is φ = 102438990720.

The previous prime is 225436634509. The next prime is 225436634539.

It is a happy number.

225436634522 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 220215271441 + 5221363081 = 469271^2 + 72259^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 633728 + ... + 923300.

Almost surely, 2^225436634522 is an apocalyptic number.

225436634522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

225436634522 is a deficient number, since it is larger than the sum of its proper divisors (146371169146).

225436634522 is a wasteful number, since it uses less digits than its factorization.

225436634522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292814 (or 292803 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 44.

It can be divided in two parts, 225436 and 634522, that added together give a palindrome (859958).

The spelling of 225436634522 in words is "two hundred twenty-five billion, four hundred thirty-six million, six hundred thirty-four thousand, five hundred twenty-two".