90554459 has 2 divisors, whose sum is σ = 90554460. Its totient is φ = 90554458.

The previous prime is 90554419. The next prime is 90554467. The reversal of 90554459 is 95445509.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90554459 - 2¹² = 90550363 is a prime.

It is a super-2 number, since 2×90554459² = 16400220089565362, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (90554419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45277229 + 45277230.

It is an arithmetic number, because the mean of its divisors is an integer number (45277230).

Almost surely, 2^90554459 is an apocalyptic number.

90554459 is a deficient number, since it is larger than the sum of its proper divisors (1).

90554459 is an equidigital number, since it uses as much as digits as its factorization.

90554459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 90554459 is about 9516.0106662403. The cubic root of 90554459 is about 449.0588709570.

The spelling of 90554459 in words is "ninety million, five hundred fifty-four thousand, four hundred fifty-nine".