23135322025 has 24 divisors (see below), whose sum is σ = 29695699800. Its totient is φ = 17858803200.

The previous prime is 23135322017. The next prime is 23135322053. The reversal of 23135322025 is 52022353132.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 14188621456 + 8946700569 = 119116^2 + 94587^2 .

It is not a de Polignac number, because 23135322025 - 2³ = 23135322017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23135321984 and 23135322002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1253061 + ... + 1271389.

It is an arithmetic number, because the mean of its divisors is an integer number (1237320825).

Almost surely, 2^23135322025 is an apocalyptic number.

23135322025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23135322025 is a deficient number, since it is larger than the sum of its proper divisors (6560377775).

23135322025 is a wasteful number, since it uses less digits than its factorization.

23135322025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20109 (or 20104 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 23135322025 its reverse (52022353132), we get a palindrome (75157675157).

The spelling of 23135322025 in words is "twenty-three billion, one hundred thirty-five million, three hundred twenty-two thousand, twenty-five".