23551552 has 42 divisors (see below), whose sum is σ = 48051974. Its totient is φ = 11450880.

The previous prime is 23551531. The next prime is 23551601. The reversal of 23551552 is 25515532.

It can be written as a sum of positive squares in only one way, i.e., 20647936 + 2903616 = 4544^2 + 1704^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23551552.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 322588 + ... + 322660.

Almost surely, 2^23551552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23551552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24025987).

23551552 is an abundant number, since it is smaller than the sum of its proper divisors (24500422).

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

23551552 is an frugal number, since it uses more digits than its factorization.

23551552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 146 counting only the distinct ones).

The product of its digits is 7500, while the sum is 28.

The square root of 23551552 is about 4852.9941273404. The cubic root of 23551552 is about 286.6420121817.

The spelling of 23551552 in words is "twenty-three million, five hundred fifty-one thousand, five hundred fifty-two".