90521083 has 2 divisors, whose sum is σ = 90521084. Its totient is φ = 90521082.

The previous prime is 90521051. The next prime is 90521089. The reversal of 90521083 is 38012509.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90521083 - 2⁵ = 90521051 is a prime.

It is equal to p_5245570 and since 90521083 and 5245570 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (90521089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45260541 + 45260542.

It is an arithmetic number, because the mean of its divisors is an integer number (45260542).

Almost surely, 2^90521083 is an apocalyptic number.

90521083 is a deficient number, since it is larger than the sum of its proper divisors (1).

90521083 is an equidigital number, since it uses as much as digits as its factorization.

90521083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 90521083 is about 9514.2568285705. The cubic root of 90521083 is about 449.0036937344.

The spelling of 90521083 in words is "ninety million, five hundred twenty-one thousand, eighty-three".