90050111 has 4 divisors (see below), whose sum is σ = 91062000. Its totient is φ = 89038224.

The previous prime is 90050089. The next prime is 90050117. The reversal of 90050111 is 11105009.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90050111 - 2²² = 85855807 is a prime.

It is a super-2 number, since 2×90050111² = 16218044982224642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90050111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90050117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505811 + ... + 505988.

It is an arithmetic number, because the mean of its divisors is an integer number (22765500).

Almost surely, 2^90050111 is an apocalyptic number.

90050111 is a deficient number, since it is larger than the sum of its proper divisors (1011889).

90050111 is a wasteful number, since it uses less digits than its factorization.

90050111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011888.

The product of its (nonzero) digits is 45, while the sum is 17.

The square root of 90050111 is about 9489.4736945734. The cubic root of 90050111 is about 448.2236324362.

The spelling of 90050111 in words is "ninety million, fifty thousand, one hundred eleven".