90249131895255 has 32 divisors (see below), whose sum is σ = 160473774609600. Its totient is φ = 48123608305536.

The previous prime is 90249131895233. The next prime is 90249131895257. The reversal of 90249131895255 is 55259813194209.

90249131895255 is a `hidden beast` number, since 9 + 0 + 2 + 4 + 91 + 3 + 18 + 9 + 525 + 5 = 666.

It is not a de Polignac number, because 90249131895255 - 2²⁵ = 90249098340823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90249131895192 and 90249131895201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90249131895257) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 63615520 + ... + 65018709.

It is an arithmetic number, because the mean of its divisors is an integer number (5014805456550).

Almost surely, 2^{90249131895255} is an apocalyptic number.

90249131895255 is a deficient number, since it is larger than the sum of its proper divisors (70224642714345).

90249131895255 is a wasteful number, since it uses less digits than its factorization.

90249131895255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128639440 (or 128639434 counting only the distinct ones).

The product of its (nonzero) digits is 34992000, while the sum is 63.

The spelling of 90249131895255 in words is "ninety trillion, two hundred forty-nine billion, one hundred thirty-one million, eight hundred ninety-five thousand, two hundred fifty-five".