90025501 has 4 divisors (see below), whose sum is σ = 90135712. Its totient is φ = 89915292.

The previous prime is 90025499. The next prime is 90025511. The reversal of 90025501 is 10552009.

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 not a de Polignac number, because 90025501 - 2¹ = 90025499 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 (90025511) 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, 53871 + ... + 55516.

It is an arithmetic number, because the mean of its divisors is an integer number (22533928).

Almost surely, 2^90025501 is an apocalyptic number.

It is an amenable number.

90025501 is a deficient number, since it is larger than the sum of its proper divisors (110211).

90025501 is a wasteful number, since it uses less digits than its factorization.

90025501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110210.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 90025501 is about 9488.1769060236. The cubic root of 90025501 is about 448.1827966967.

The spelling of 90025501 in words is "ninety million, twenty-five thousand, five hundred one".