90495475272 has 48 divisors (see below), whose sum is σ = 251716025340. Its totient is φ = 29349883008.

The previous prime is 90495475261. The next prime is 90495475303. The reversal of 90495475272 is 27257459409.

90495475272 is a `hidden beast` number, since 9 + 0 + 49 + 547 + 52 + 7 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 71992402596 + 18503072676 = 268314^2 + 136026^2 .

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, 16982223 + ... + 16987550.

Almost surely, 2^90495475272 is an apocalyptic number.

It is an amenable number.

90495475272 is an abundant number, since it is smaller than the sum of its proper divisors (161220550068).

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

90495475272 is a wasteful number, since it uses less digits than its factorization.

90495475272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33969822 (or 33969815 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 54.

The spelling of 90495475272 in words is "ninety billion, four hundred ninety-five million, four hundred seventy-five thousand, two hundred seventy-two".