5251042400 has 36 divisors (see below), whose sum is σ = 12819109212. Its totient is φ = 2100416640.

The previous prime is 5251042343. The next prime is 5251042403. The reversal of 5251042400 is 42401525.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5251042403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3281102 + ... + 3282701.

It is an arithmetic number, because the mean of its divisors is an integer number (356086367).

Almost surely, 2^5251042400 is an apocalyptic number.

5251042400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5251042400 is an abundant number, since it is smaller than the sum of its proper divisors (7568066812).

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

5251042400 is a wasteful number, since it uses less digits than its factorization.

5251042400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6563823 (or 6563810 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 5251042400 is about 72464.0766173143. The cubic root of 5251042400 is about 1738.1283437254.

Adding to 5251042400 its reverse (42401525), we get a palindrome (5293443925).

The spelling of 5251042400 in words is "five billion, two hundred fifty-one million, forty-two thousand, four hundred".