23555204154523 has 2 divisors, whose sum is σ = 23555204154524. Its totient is φ = 23555204154522.

The previous prime is 23555204154499. The next prime is 23555204154551. The reversal of 23555204154523 is 32545140255532.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23555204154523 - 2²⁹ = 23554667283611 is a prime.

It is a super-2 number, since 2×23555204154523² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23555204154553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11777602077261 + 11777602077262.

It is an arithmetic number, because the mean of its divisors is an integer number (11777602077262).

Almost surely, 2^{23555204154523} is an apocalyptic number.

23555204154523 is a deficient number, since it is larger than the sum of its proper divisors (1).

23555204154523 is an equidigital number, since it uses as much as digits as its factorization.

23555204154523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600000, while the sum is 46.

The spelling of 23555204154523 in words is "twenty-three trillion, five hundred fifty-five billion, two hundred four million, one hundred fifty-four thousand, five hundred twenty-three".