557621016 has 96 divisors (see below), whose sum is σ = 1471599360. Its totient is φ = 176055616.

The previous prime is 557620957. The next prime is 557621017. The reversal of 557621016 is 610126755.

It is a super-3 number, since 3×557621016³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557621017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2120101 + ... + 2120363.

It is an arithmetic number, because the mean of its divisors is an integer number (15329160).

Almost surely, 2^557621016 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 557621016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (735799680).

557621016 is an abundant number, since it is smaller than the sum of its proper divisors (913978344).

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

557621016 is a wasteful number, since it uses less digits than its factorization.

557621016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 557621016 is about 23614.0004234776. Note that the first 3 decimals coincide. The cubic root of 557621016 is about 823.0882042014.

The spelling of 557621016 in words is "five hundred fifty-seven million, six hundred twenty-one thousand, sixteen".