23555120 has 20 divisors (see below), whose sum is σ = 54765840. Its totient is φ = 9422016.

The previous prime is 23555113. The next prime is 23555137. The reversal of 23555120 is 2155532.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147140 + ... + 147299.

It is an arithmetic number, because the mean of its divisors is an integer number (2738292).

Almost surely, 2^23555120 is an apocalyptic number.

23555120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23555120 is an abundant number, since it is smaller than the sum of its proper divisors (31210720).

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

23555120 is a wasteful number, since it uses less digits than its factorization.

23555120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294452 (or 294446 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 23555120 is about 4853.3617215287. The cubic root of 23555120 is about 286.6564866285.

It can be divided in two parts, 235 and 55120, that added together give a palindrome (55355).

The spelling of 23555120 in words is "twenty-three million, five hundred fifty-five thousand, one hundred twenty".