92881705225 has 9 divisors (see below), whose sum is σ = 115175204053. Its totient is φ = 74304145120.

The previous prime is 92881705211. The next prime is 92881705229. The reversal of 92881705225 is 52250718829.

The square root of 92881705225 is 304765.

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 20905400569 + 71976304656 = 144587^2 + 268284^2 .

It is not a de Polignac number, because 92881705225 - 2⁷ = 92881705097 is a prime.

It is a super-2 number, since 2×92881705225² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (92881705229) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1493349 + ... + 1554301.

Almost surely, 2^92881705225 is an apocalyptic number.

92881705225 is the 304765-th square number.

92881705225 is the 152383-rd centered octagonal number.

It is an amenable number.

92881705225 is a deficient number, since it is larger than the sum of its proper divisors (22293498828).

92881705225 is an frugal number, since it uses more digits than its factorization.

92881705225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121916 (or 60958 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 49.

Multiplying 92881705225 by its sum of digits (49), we get a square (4551203556025 = 2133355²).

The spelling of 92881705225 in words is "ninety-two billion, eight hundred eighty-one million, seven hundred five thousand, two hundred twenty-five".