23120055 has 48 divisors (see below), whose sum is σ = 48222720. Its totient is φ = 10010304.

The previous prime is 23120039. The next prime is 23120171. The reversal of 23120055 is 55002132.

It is a happy number.

It is not a de Polignac number, because 23120055 - 2⁴ = 23120039 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4054 + ... + 7916.

It is an arithmetic number, because the mean of its divisors is an integer number (1004640).

Almost surely, 2^23120055 is an apocalyptic number.

23120055 is an abundant number, since it is smaller than the sum of its proper divisors (25102665).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23120055 is a wasteful number, since it uses less digits than its factorization.

23120055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3900 (or 3897 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 23120055 is about 4808.3318313111. The cubic root of 23120055 is about 284.8806517824.

Adding to 23120055 its reverse (55002132), we get a palindrome (78122187).

The spelling of 23120055 in words is "twenty-three million, one hundred twenty thousand, fifty-five".