90237156025 has 27 divisors (see below), whose sum is σ = 113585880429. Its totient is φ = 71114310720.

The previous prime is 90237155993. The next prime is 90237156041. The reversal of 90237156025 is 52065173209.

The square root of 90237156025 is 300395.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 493772841 + 89743383184 = 22221^2 + 299572^2 .

It is not a de Polignac number, because 90237156025 - 2⁵ = 90237155993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 109643764 + ... + 109644586.

Almost surely, 2^90237156025 is an apocalyptic number.

90237156025 is the 300395-th square number.

90237156025 is the 150198-th centered octagonal number.

It is an amenable number.

90237156025 is a deficient number, since it is larger than the sum of its proper divisors (23348724404).

90237156025 is an frugal number, since it uses more digits than its factorization.

90237156025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 40.

The spelling of 90237156025 in words is "ninety billion, two hundred thirty-seven million, one hundred fifty-six thousand, twenty-five".