90459955 has 4 divisors (see below), whose sum is σ = 108551952. Its totient is φ = 72367960.

The previous prime is 90459937. The next prime is 90459973. The reversal of 90459955 is 55995409.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55995409 = 23 ⋅2434583.

It is an interprime number because it is at equal distance from previous prime (90459937) and next prime (90459973).

It is not a de Polignac number, because 90459955 - 2¹³ = 90451763 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9045991 + ... + 9046000.

It is an arithmetic number, because the mean of its divisors is an integer number (27137988).

Almost surely, 2^90459955 is an apocalyptic number.

90459955 is a deficient number, since it is larger than the sum of its proper divisors (18091997).

90459955 is a wasteful number, since it uses less digits than its factorization.

90459955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18091996.

The product of its (nonzero) digits is 364500, while the sum is 46.

The square root of 90459955 is about 9511.0438438691. The cubic root of 90459955 is about 448.9026017111.

The spelling of 90459955 in words is "ninety million, four hundred fifty-nine thousand, nine hundred fifty-five".