23285556 has 60 divisors (see below), whose sum is σ = 69575968. Its totient is φ = 6652368.

The previous prime is 23285533. The next prime is 23285569. The reversal of 23285556 is 65558232.

It is a happy number.

23285556 is a `hidden beast` number, since 23 + 2 + 85 + 556 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 23285556.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2866 + ... + 7401.

Almost surely, 2^23285556 is an apocalyptic number.

It is an amenable number.

23285556 is an abundant number, since it is smaller than the sum of its proper divisors (46290412).

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

23285556 is a wasteful number, since it uses less digits than its factorization.

23285556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10290 (or 10279 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 23285556 is about 4825.5109574013. The cubic root of 23285556 is about 285.5587928685.

The spelling of 23285556 in words is "twenty-three million, two hundred eighty-five thousand, five hundred fifty-six".