23421502533 has 32 divisors (see below), whose sum is σ = 37066522752. Its totient is φ = 12967833600.

The previous prime is 23421502523. The next prime is 23421502549. The reversal of 23421502533 is 33520512432.

It is not a de Polignac number, because 23421502533 - 2⁵ = 23421502501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23421502533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23421502523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 239808 + ... + 323033.

It is an arithmetic number, because the mean of its divisors is an integer number (1158328836).

Almost surely, 2^23421502533 is an apocalyptic number.

It is an amenable number.

23421502533 is a deficient number, since it is larger than the sum of its proper divisors (13645020219).

23421502533 is a wasteful number, since it uses less digits than its factorization.

23421502533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562965.

The product of its (nonzero) digits is 21600, while the sum is 30.

The spelling of 23421502533 in words is "twenty-three billion, four hundred twenty-one million, five hundred two thousand, five hundred thirty-three".