225211531764 has 48 divisors (see below), whose sum is σ = 534361868096. Its totient is φ = 73804780800.

The previous prime is 225211531759. The next prime is 225211531789. The reversal of 225211531764 is 467135112522.

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, 1492299 + ... + 1636269.

Almost surely, 2^225211531764 is an apocalyptic number.

It is an amenable number.

225211531764 is an abundant number, since it is smaller than the sum of its proper divisors (309150336332).

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

225211531764 is a wasteful number, since it uses less digits than its factorization.

225211531764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146176 (or 146174 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The spelling of 225211531764 in words is "two hundred twenty-five billion, two hundred eleven million, five hundred thirty-one thousand, seven hundred sixty-four".