23511553125 has 24 divisors (see below), whose sum is σ = 39183429600. Its totient is φ = 12539490000.

The previous prime is 23511553123. The next prime is 23511553133. The reversal of 23511553125 is 52135511532.

It is a happy number.

It is not a de Polignac number, because 23511553125 - 2¹ = 23511553123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23511553123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1244575 + ... + 1263324.

It is an arithmetic number, because the mean of its divisors is an integer number (1632642900).

Almost surely, 2^23511553125 is an apocalyptic number.

23511553125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23511553125 is a deficient number, since it is larger than the sum of its proper divisors (15671876475).

23511553125 is an frugal number, since it uses more digits than its factorization.

23511553125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507927 (or 2507907 counting only the distinct ones).

The product of its digits is 22500, while the sum is 33.

The spelling of 23511553125 in words is "twenty-three billion, five hundred eleven million, five hundred fifty-three thousand, one hundred twenty-five".