5251131200 has 84 divisors (see below), whose sum is σ = 14766962592. Its totient is φ = 1800384000.

The previous prime is 5251131187. The next prime is 5251131209. The reversal of 5251131200 is 21311525.

It is a happy number.

It is a super-2 number, since 2×5251131200² = 55148757759226880000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5251131209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223226 + ... + 245625.

Almost surely, 2^5251131200 is an apocalyptic number.

5251131200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5251131200 is an abundant number, since it is smaller than the sum of its proper divisors (9515831392).

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

5251131200 is a wasteful number, since it uses less digits than its factorization.

5251131200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468880 (or 468865 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 5251131200 is about 72464.6893321154. The cubic root of 5251131200 is about 1738.1381414579.

Adding to 5251131200 its reverse (21311525), we get a palindrome (5272442725).

The spelling of 5251131200 in words is "five billion, two hundred fifty-one million, one hundred thirty-one thousand, two hundred".