23153442025 has 36 divisors (see below), whose sum is σ = 33591016332. Its totient is φ = 15784728960.

The previous prime is 23153442023. The next prime is 23153442029. The reversal of 23153442025 is 52024435132.

It can be written as a sum of positive squares in 6 ways, for example, as 43665664 + 23109776361 = 6608^2 + 152019^2 .

It is not a de Polignac number, because 23153442025 - 2¹ = 23153442023 is a prime.

It is a super-2 number, since 2×23153442025² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23153442023) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 157299 + ... + 266551.

It is an arithmetic number, because the mean of its divisors is an integer number (933083787).

Almost surely, 2^23153442025 is an apocalyptic number.

23153442025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23153442025 is a deficient number, since it is larger than the sum of its proper divisors (10437574307).

23153442025 is a wasteful number, since it uses less digits than its factorization.

23153442025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109450 (or 109438 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 23153442025 its reverse (52024435132), we get a palindrome (75177877157).

The spelling of 23153442025 in words is "twenty-three billion, one hundred fifty-three million, four hundred forty-two thousand, twenty-five".