90503233 has 2 divisors, whose sum is σ = 90503234. Its totient is φ = 90503232.

The previous prime is 90503219. The next prime is 90503239. The reversal of 90503233 is 33230509.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61591104 + 28912129 = 7848^2 + 5377^2 .

It is a cyclic number.

It is not a de Polignac number, because 90503233 - 2⁹ = 90502721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90503198 and 90503207.

It is not a weakly prime, because it can be changed into another prime (90503239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45251616 + 45251617.

It is an arithmetic number, because the mean of its divisors is an integer number (45251617).

Almost surely, 2^90503233 is an apocalyptic number.

It is an amenable number.

90503233 is a deficient number, since it is larger than the sum of its proper divisors (1).

90503233 is an equidigital number, since it uses as much as digits as its factorization.

90503233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 25.

The square root of 90503233 is about 9513.3187164102. The cubic root of 90503233 is about 448.9741785373.

The spelling of 90503233 in words is "ninety million, five hundred three thousand, two hundred thirty-three".