85992630025 has 27 divisors (see below), whose sum is σ = 107519986119. Its totient is φ = 68225208720.

The previous prime is 85992630019. The next prime is 85992630049. The reversal of 85992630025 is 52003629958.

It is a happy number.

The square root of 85992630025 is 293245.

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

It can be written as a sum of positive squares in only one way, i.e., 30957346809 + 55035283216 = 175947^2 + 234596^2 .

It is not a de Polignac number, because 85992630025 - 2⁵ = 85992629993 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, 326968044 + ... + 326968306.

Almost surely, 2^85992630025 is an apocalyptic number.

85992630025 is the 293245-th square number.

85992630025 is the 146623-rd centered octagonal number.

It is an amenable number.

85992630025 is a deficient number, since it is larger than the sum of its proper divisors (21527356094).

85992630025 is an frugal number, since it uses more digits than its factorization.

85992630025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 49.

Multiplying 85992630025 by its sum of digits (49), we get a square (4213638871225 = 2052715²).

The spelling of 85992630025 in words is "eighty-five billion, nine hundred ninety-two million, six hundred thirty thousand, twenty-five".