557728752 has 80 divisors (see below), whose sum is σ = 1677749760. Its totient is φ = 156339456.

The previous prime is 557728739. The next prime is 557728819. The reversal of 557728752 is 257827755.

It is a super-2 number, since 2×557728752² = 622122721614955008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2149 + ... + 33467.

It is an arithmetic number, because the mean of its divisors is an integer number (20971872).

Almost surely, 2^557728752 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 557728752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (838874880).

557728752 is an abundant number, since it is smaller than the sum of its proper divisors (1120021008).

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

557728752 is a wasteful number, since it uses less digits than its factorization.

557728752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31390 (or 31384 counting only the distinct ones).

The product of its digits is 1372000, while the sum is 48.

The square root of 557728752 is about 23616.2815023873. The cubic root of 557728752 is about 823.1412094492.

The spelling of 557728752 in words is "five hundred fifty-seven million, seven hundred twenty-eight thousand, seven hundred fifty-two".