23555642 has 16 divisors (see below), whose sum is σ = 40813632. Its totient is φ = 10077120.

The previous prime is 23555621. The next prime is 23555683. The reversal of 23555642 is 24655532.

It is a junction number, because it is equal to n+sod(n) for n = 23555599 and 23555608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31118 + ... + 31865.

It is an arithmetic number, because the mean of its divisors is an integer number (2550852).

Almost surely, 2^23555642 is an apocalyptic number.

23555642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23555642 is a deficient number, since it is larger than the sum of its proper divisors (17257990).

23555642 is a wasteful number, since it uses less digits than its factorization.

23555642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63013.

The product of its digits is 36000, while the sum is 32.

The square root of 23555642 is about 4853.4154983887. The cubic root of 23555642 is about 286.6586041239.

It can be divided in two parts, 2355 and 5642, that added together give a palindrome (7997).

The spelling of 23555642 in words is "twenty-three million, five hundred fifty-five thousand, six hundred forty-two".