57223552 has 32 divisors (see below), whose sum is σ = 114725520. Its totient is φ = 28429824.

The previous prime is 57223549. The next prime is 57223589. The reversal of 57223552 is 25532275.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

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, 20038 + ... + 22714.

Almost surely, 2^57223552 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 57223552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57362760).

57223552 is an abundant number, since it is smaller than the sum of its proper divisors (57501968).

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

57223552 is a wasteful number, since it uses less digits than its factorization.

57223552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858 (or 2846 counting only the distinct ones).

The product of its digits is 21000, while the sum is 31.

The square root of 57223552 is about 7564.6250402779. The cubic root of 57223552 is about 385.3525796937.

It can be divided in two parts, 57223 and 552, that added together give a palindrome (57775).

The spelling of 57223552 in words is "fifty-seven million, two hundred twenty-three thousand, five hundred fifty-two".