23031554553 has 32 divisors (see below), whose sum is σ = 39946341120. Its totient is φ = 12839886720.

The previous prime is 23031554527. The next prime is 23031554561. The reversal of 23031554553 is 35545513032.

23031554553 is a `hidden beast` number, since 2 + 30 + 31 + 5 + 545 + 53 = 666.

It is not a de Polignac number, because 23031554553 - 2⁶ = 23031554489 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23031554053) 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 31 ways as a sum of consecutive naturals, for example, 1478350 + ... + 1493847.

It is an arithmetic number, because the mean of its divisors is an integer number (1248323160).

Almost surely, 2^23031554553 is an apocalyptic number.

It is an amenable number.

23031554553 is a deficient number, since it is larger than the sum of its proper divisors (16914786567).

23031554553 is a wasteful number, since it uses less digits than its factorization.

23031554553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2972254 (or 2972248 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

The spelling of 23031554553 in words is "twenty-three billion, thirty-one million, five hundred fifty-four thousand, five hundred fifty-three".