90275519 has 2 divisors, whose sum is σ = 90275520. Its totient is φ = 90275518.

The previous prime is 90275513. The next prime is 90275527. The reversal of 90275519 is 91557209.

It is a weak prime.

It is an emirp because it is prime and its reverse (91557209) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90275519 - 2¹⁶ = 90209983 is a prime.

It is a super-2 number, since 2×90275519² = 16299338661438722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90275513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45137759 + 45137760.

It is an arithmetic number, because the mean of its divisors is an integer number (45137760).

Almost surely, 2^90275519 is an apocalyptic number.

90275519 is a deficient number, since it is larger than the sum of its proper divisors (1).

90275519 is an equidigital number, since it uses as much as digits as its factorization.

90275519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28350, while the sum is 38.

The square root of 90275519 is about 9501.3430103328. The cubic root of 90275519 is about 448.5973095973.

The spelling of 90275519 in words is "ninety million, two hundred seventy-five thousand, five hundred nineteen".