23031020551525 has 48 divisors (see below), whose sum is σ = 32841297022464. Its totient is φ = 15694529518080.

The previous prime is 23031020551489. The next prime is 23031020551529. The reversal of 23031020551525 is 52515502013032.

It is not a de Polignac number, because 23031020551525 - 2⁹ = 23031020551013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031020551529) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69376084 + ... + 69707266.

It is an arithmetic number, because the mean of its divisors is an integer number (684193687968).

Almost surely, 2^{23031020551525} is an apocalyptic number.

23031020551525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23031020551525 is a deficient number, since it is larger than the sum of its proper divisors (9810276470939).

23031020551525 is a wasteful number, since it uses less digits than its factorization.

23031020551525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333670 (or 333665 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 34.

Adding to 23031020551525 its reverse (52515502013032), we get a palindrome (75546522564557).

The spelling of 23031020551525 in words is "twenty-three trillion, thirty-one billion, twenty million, five hundred fifty-one thousand, five hundred twenty-five".