23502555243 has 20 divisors (see below), whose sum is σ = 35436887640. Its totient is φ = 15521931072.

The previous prime is 23502555239. The next prime is 23502555247. The reversal of 23502555243 is 34255520532.

23502555243 is a `hidden beast` number, since 2 + 350 + 255 + 52 + 4 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (23502555239) and next prime (23502555247).

It is not a de Polignac number, because 23502555243 - 2² = 23502555239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23502555198 and 23502555207.

It is not an unprimeable number, because it can be changed into a prime (23502555247) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1347198 + ... + 1364531.

It is an arithmetic number, because the mean of its divisors is an integer number (1771844382).

Almost surely, 2^23502555243 is an apocalyptic number.

23502555243 is a deficient number, since it is larger than the sum of its proper divisors (11934332397).

23502555243 is a wasteful number, since it uses less digits than its factorization.

23502555243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2711848 (or 2711839 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 36.

The spelling of 23502555243 in words is "twenty-three billion, five hundred two million, five hundred fifty-five thousand, two hundred forty-three".