90995519 has 2 divisors, whose sum is σ = 90995520. Its totient is φ = 90995518.

The previous prime is 90995507. The next prime is 90995561. The reversal of 90995519 is 91559909.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90995519 - 2¹⁶ = 90929983 is a prime.

It is a super-2 number, since 2×90995519² = 16560368956158722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90995599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45497759 + 45497760.

It is an arithmetic number, because the mean of its divisors is an integer number (45497760).

Almost surely, 2^90995519 is an apocalyptic number.

90995519 is a deficient number, since it is larger than the sum of its proper divisors (1).

90995519 is an equidigital number, since it uses as much as digits as its factorization.

90995519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 164025, while the sum is 47.

The square root of 90995519 is about 9539.1571430604. The cubic root of 90995519 is about 449.7867615215.

The spelling of 90995519 in words is "ninety million, nine hundred ninety-five thousand, five hundred nineteen".