90275715 has 28 divisors (see below), whose sum is σ = 162428544. Its totient is φ = 48145104.

The previous prime is 90275711. The next prime is 90275747. The reversal of 90275715 is 51757209.

It is not a de Polignac number, because 90275715 - 2² = 90275711 is a prime.

It is a super-2 number, since 2×90275715² = 16299409437522450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90275715.

It is not an unprimeable number, because it can be changed into a prime (90275711) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 8739 + ... + 16028.

Almost surely, 2^90275715 is an apocalyptic number.

90275715 is a deficient number, since it is larger than the sum of its proper divisors (72152829).

90275715 is an equidigital number, since it uses as much as digits as its factorization.

90275715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24790 (or 24775 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 36.

The square root of 90275715 is about 9501.3533246585. The cubic root of 90275715 is about 448.5976342516.

The spelling of 90275715 in words is "ninety million, two hundred seventy-five thousand, seven hundred fifteen".