5251200000 has 264 divisors, whose sum is σ = 17526315744. Its totient is φ = 1397760000.

The previous prime is 5251199981. The next prime is 5251200007. The reversal of 5251200000 is 21525.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5251200007) 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, 9599727 + ... + 9600273.

Almost surely, 2^5251200000 is an apocalyptic number.

5251200000 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 5251200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8763157872).

5251200000 is an abundant number, since it is smaller than the sum of its proper divisors (12275115744).

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

5251200000 is an frugal number, since it uses more digits than its factorization.

5251200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595 (or 557 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 5251200000 is about 72465.1640445256. The cubic root of 5251200000 is about 1738.1457324180.

Adding to 5251200000 its reverse (21525), we get a palindrome (5251221525).

The spelling of 5251200000 in words is "five billion, two hundred fifty-one million, two hundred thousand".