90558059 has 8 divisors (see below), whose sum is σ = 91689840. Its totient is φ = 89431776.

The previous prime is 90558029. The next prime is 90558089. The reversal of 90558059 is 95085509.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (90558029) and next prime (90558089).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90558059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90558029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38777 + ... + 41045.

It is an arithmetic number, because the mean of its divisors is an integer number (11461230).

Almost surely, 2^90558059 is an apocalyptic number.

90558059 is a deficient number, since it is larger than the sum of its proper divisors (1131781).

90558059 is a wasteful number, since it uses less digits than its factorization.

90558059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749.

The product of its (nonzero) digits is 81000, while the sum is 41.

The square root of 90558059 is about 9516.1998192556. The cubic root of 90558059 is about 449.0648216689.

The spelling of 90558059 in words is "ninety million, five hundred fifty-eight thousand, fifty-nine".