23217055528755 has 64 divisors (see below), whose sum is σ = 41117916211200. Its totient is φ = 11092424977920.

The previous prime is 23217055528729. The next prime is 23217055528757. The reversal of 23217055528755 is 55782555071232.

It is not a de Polignac number, because 23217055528755 - 2²¹ = 23217053431603 is a prime.

It is a super-2 number, since 2×23217055528755² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23217055528695 and 23217055528704.

It is not an unprimeable number, because it can be changed into a prime (23217055528757) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4885177 + ... + 8384453.

It is an arithmetic number, because the mean of its divisors is an integer number (642467440800).

Almost surely, 2^{23217055528755} is an apocalyptic number.

23217055528755 is a deficient number, since it is larger than the sum of its proper divisors (17900860682445).

23217055528755 is a wasteful number, since it uses less digits than its factorization.

23217055528755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3499884.

The product of its (nonzero) digits is 29400000, while the sum is 57.

The spelling of 23217055528755 in words is "twenty-three trillion, two hundred seventeen billion, fifty-five million, five hundred twenty-eight thousand, seven hundred fifty-five".