23157552 has 80 divisors (see below), whose sum is σ = 66424320. Its totient is φ = 6892800.

The previous prime is 23157529. The next prime is 23157611. The reversal of 23157552 is 25575132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31849 + ... + 32567.

It is an arithmetic number, because the mean of its divisors is an integer number (830304).

Almost surely, 2^23157552 is an apocalyptic number.

23157552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23157552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33212160).

23157552 is an abundant number, since it is smaller than the sum of its proper divisors (43266768).

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

23157552 is a wasteful number, since it uses less digits than its factorization.

23157552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802 (or 796 counting only the distinct ones).

The product of its digits is 10500, while the sum is 30.

The square root of 23157552 is about 4812.2294209649. The cubic root of 23157552 is about 285.0345787530.

The spelling of 23157552 in words is "twenty-three million, one hundred fifty-seven thousand, five hundred fifty-two".