23155154234425 has 12 divisors (see below), whose sum is σ = 29638597421056. Its totient is φ = 17926571019600.

The previous prime is 23155154234423. The next prime is 23155154234437. The reversal of 23155154234425 is 52443245155132.

It is not a de Polignac number, because 23155154234425 - 2¹ = 23155154234423 is a prime.

It is a super-2 number, since 2×23155154234425² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23155154234423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14938808409 + ... + 14938809958.

Almost surely, 2^{23155154234425} is an apocalyptic number.

23155154234425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23155154234425 is a deficient number, since it is larger than the sum of its proper divisors (6483443186631).

23155154234425 is a wasteful number, since it uses less digits than its factorization.

23155154234425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29877618408 (or 29877618403 counting only the distinct ones).

The product of its digits is 2880000, while the sum is 46.

Adding to 23155154234425 its reverse (52443245155132), we get a palindrome (75598399389557).

The spelling of 23155154234425 in words is "twenty-three trillion, one hundred fifty-five billion, one hundred fifty-four million, two hundred thirty-four thousand, four hundred twenty-five".