5591172400 has 240 divisors, whose sum is σ = 15277593600. Its totient is φ = 1948032000.

The previous prime is 5591172383. The next prime is 5591172413. The reversal of 5591172400 is 42711955.

It is a super-2 number, since 2×5591172400² = 62522417613043520000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24415486 + ... + 24415714.

It is an arithmetic number, because the mean of its divisors is an integer number (63656640).

Almost surely, 2^5591172400 is an apocalyptic number.

5591172400 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 5591172400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7638796800).

5591172400 is an abundant number, since it is smaller than the sum of its proper divisors (9686421200).

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

5591172400 is a wasteful number, since it uses less digits than its factorization.

5591172400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 5591172400 is about 74774.1425895343. The cubic root of 5591172400 is about 1774.8744102109.

The spelling of 5591172400 in words is "five billion, five hundred ninety-one million, one hundred seventy-two thousand, four hundred".