23502134533 has 4 divisors (see below), whose sum is σ = 23528933740. Its totient is φ = 23475335328.

The previous prime is 23502134497. The next prime is 23502134543. The reversal of 23502134533 is 33543120532.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21814403809 + 1687730724 = 147697^2 + 41082^2 .

It is a cyclic number.

It is not a de Polignac number, because 23502134533 - 2¹³ = 23502126341 is a prime.

It is a super-2 number, since 2×23502134533² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23502134495 and 23502134504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23502134543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13398288 + ... + 13400041.

It is an arithmetic number, because the mean of its divisors is an integer number (5882233435).

Almost surely, 2^23502134533 is an apocalyptic number.

It is an amenable number.

23502134533 is a deficient number, since it is larger than the sum of its proper divisors (26799207).

23502134533 is an equidigital number, since it uses as much as digits as its factorization.

23502134533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26799206.

The product of its (nonzero) digits is 32400, while the sum is 31.

The spelling of 23502134533 in words is "twenty-three billion, five hundred two million, one hundred thirty-four thousand, five hundred thirty-three".