225947655990 has 96 divisors (see below), whose sum is σ = 700578118656. Its totient is φ = 49399732800.

The previous prime is 225947655959. The next prime is 225947655991. The reversal of 225947655990 is 99556749522.

225947655990 is a `hidden beast` number, since 2 + 2 + 5 + 9 + 4 + 76 + 559 + 9 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225947655991) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7782186 + ... + 7811165.

It is an arithmetic number, because the mean of its divisors is an integer number (7297688736).

Almost surely, 2^225947655990 is an apocalyptic number.

225947655990 is an abundant number, since it is smaller than the sum of its proper divisors (474630462666).

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

225947655990 is a wasteful number, since it uses less digits than its factorization.

225947655990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15593394 (or 15593391 counting only the distinct ones).

The product of its (nonzero) digits is 61236000, while the sum is 63.

The spelling of 225947655990 in words is "two hundred twenty-five billion, nine hundred forty-seven million, six hundred fifty-five thousand, nine hundred ninety".