225465630520 has 64 divisors (see below), whose sum is σ = 559645511040. Its totient is φ = 81218380800.

The previous prime is 225465630469. The next prime is 225465630539. The reversal of 225465630520 is 25036564522.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5266336 + ... + 5308975.

It is an arithmetic number, because the mean of its divisors is an integer number (8744461110).

Almost surely, 2^225465630520 is an apocalyptic number.

225465630520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225465630520 is an abundant number, since it is smaller than the sum of its proper divisors (334179880520).

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

225465630520 is a wasteful number, since it uses less digits than its factorization.

225465630520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10575376 (or 10575372 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 40.

The spelling of 225465630520 in words is "two hundred twenty-five billion, four hundred sixty-five million, six hundred thirty thousand, five hundred twenty".