5657551900 has 144 divisors (see below), whose sum is σ = 16483944960. Its totient is φ = 1627718400.

The previous prime is 5657551871. The next prime is 5657551909. The reversal of 5657551900 is 91557565.

It is a super-2 number, since 2×5657551900² = 64015787002387220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5657551909) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71841 + ... + 128359.

It is an arithmetic number, because the mean of its divisors is an integer number (114471840).

Almost surely, 2^5657551900 is an apocalyptic number.

5657551900 is a gapful number since it is divisible by the number (50) 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 5657551900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8241972480).

5657551900 is an abundant number, since it is smaller than the sum of its proper divisors (10826393060).

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

5657551900 is a wasteful number, since it uses less digits than its factorization.

5657551900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56564 (or 56557 counting only the distinct ones).

The product of its (nonzero) digits is 236250, while the sum is 43.

The square root of 5657551900 is about 75216.6996085311. The cubic root of 5657551900 is about 1781.8706819830.

The spelling of 5657551900 in words is "five billion, six hundred fifty-seven million, five hundred fifty-one thousand, nine hundred".