5172565400 has 96 divisors (see below), whose sum is σ = 12315283200. Its totient is φ = 2019792000.

The previous prime is 5172565393. The next prime is 5172565403. The reversal of 5172565400 is 45652715.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5172565403) 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, 1780349 + ... + 1783251.

It is an arithmetic number, because the mean of its divisors is an integer number (128284200).

Almost surely, 2^5172565400 is an apocalyptic number.

5172565400 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 5172565400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6157641600).

5172565400 is an abundant number, since it is smaller than the sum of its proper divisors (7142717800).

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

5172565400 is a wasteful number, since it uses less digits than its factorization.

5172565400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3129 (or 3120 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 5172565400 is about 71920.5492192600. The cubic root of 5172565400 is about 1729.4260517131.

The spelling of 5172565400 in words is "five billion, one hundred seventy-two million, five hundred sixty-five thousand, four hundred".