23555020515442 has 48 divisors (see below), whose sum is σ = 38466628493832. Its totient is φ = 10812828948480.

The previous prime is 23555020515437. The next prime is 23555020515469. The reversal of 23555020515442 is 24451502055532.

It can be written as a sum of positive squares in 12 ways, for example, as 5865013524841 + 17690006990601 = 2421779^2 + 4205949^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51923842 + ... + 52375522.

Almost surely, 2^{23555020515442} is an apocalyptic number.

23555020515442 is a deficient number, since it is larger than the sum of its proper divisors (14911607978390).

23555020515442 is a wasteful number, since it uses less digits than its factorization.

23555020515442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452543 (or 452530 counting only the distinct ones).

The product of its (nonzero) digits is 1200000, while the sum is 43.

The spelling of 23555020515442 in words is "twenty-three trillion, five hundred fifty-five billion, twenty million, five hundred fifteen thousand, four hundred forty-two".