90250233 has 12 divisors (see below), whose sum is σ = 124629648. Its totient is φ = 58090480.

The previous prime is 90250211. The next prime is 90250243. The reversal of 90250233 is 33205209.

It is not a de Polignac number, because 90250233 - 2⁶ = 90250169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90250243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15363 + ... + 20408.

It is an arithmetic number, because the mean of its divisors is an integer number (10385804).

Almost surely, 2^90250233 is an apocalyptic number.

It is an amenable number.

90250233 is a deficient number, since it is larger than the sum of its proper divisors (34379415).

90250233 is a wasteful number, since it uses less digits than its factorization.

90250233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35832 (or 35803 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 90250233 is about 9500.0122631500. The cubic root of 90250233 is about 448.5554219370. Note that the first 3 decimals are identical.

The spelling of 90250233 in words is "ninety million, two hundred fifty thousand, two hundred thirty-three".