23090281825 has 36 divisors (see below), whose sum is σ = 31024754740. Its totient is φ = 16946346240.

The previous prime is 23090281789. The next prime is 23090281859. The reversal of 23090281825 is 52818209032.

It can be written as a sum of positive squares in 18 ways, for example, as 21954052561 + 1136229264 = 148169^2 + 33708^2 .

It is not a de Polignac number, because 23090281825 - 2¹⁷ = 23090150753 is a prime.

It is a super-2 number, since 2×23090281825² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 41454447 + ... + 41455003.

Almost surely, 2^23090281825 is an apocalyptic number.

23090281825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23090281825 is a deficient number, since it is larger than the sum of its proper divisors (7934472915).

23090281825 is an equidigital number, since it uses as much as digits as its factorization.

23090281825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366 (or 804 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 23090281825 in words is "twenty-three billion, ninety million, two hundred eighty-one thousand, eight hundred twenty-five".