90459553 has 2 divisors, whose sum is σ = 90459554. Its totient is φ = 90459552.

The previous prime is 90459541. The next prime is 90459557. The reversal of 90459553 is 35595409.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53699584 + 36759969 = 7328^2 + 6063^2 .

It is a cyclic number.

It is not a de Polignac number, because 90459553 - 2⁵ = 90459521 is a prime.

It is not a weakly prime, because it can be changed into another prime (90459557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45229776 + 45229777.

It is an arithmetic number, because the mean of its divisors is an integer number (45229777).

Almost surely, 2^90459553 is an apocalyptic number.

It is an amenable number.

90459553 is a deficient number, since it is larger than the sum of its proper divisors (1).

90459553 is an equidigital number, since it uses as much as digits as its factorization.

90459553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 121500, while the sum is 40.

The square root of 90459553 is about 9511.0227105186. The cubic root of 90459553 is about 448.9019367425.

The spelling of 90459553 in words is "ninety million, four hundred fifty-nine thousand, five hundred fifty-three".