90510253 has 4 divisors (see below), whose sum is σ = 90616480. Its totient is φ = 90404028.

The previous prime is 90510239. The next prime is 90510263. The reversal of 90510253 is 35201509.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90510253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90510223) 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, 51825 + ... + 53542.

It is an arithmetic number, because the mean of its divisors is an integer number (22654120).

Almost surely, 2^90510253 is an apocalyptic number.

It is an amenable number.

90510253 is a deficient number, since it is larger than the sum of its proper divisors (106227).

90510253 is a wasteful number, since it uses less digits than its factorization.

90510253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106226.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 90510253 is about 9513.6876656741. The cubic root of 90510253 is about 448.9857866576.

The spelling of 90510253 in words is "ninety million, five hundred ten thousand, two hundred fifty-three".