51234424000 has 56 divisors (see below), whose sum is σ = 126882070848. Its totient is φ = 20493766400.

The previous prime is 51234423997. The next prime is 51234424001. The reversal of 51234424000 is 42443215.

It is a happy number.

It is a super-2 number, since 2×51234424000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (51234424001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3194152 + ... + 3210151.

Almost surely, 2^51234424000 is an apocalyptic number.

51234424000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51234424000 is an abundant number, since it is smaller than the sum of its proper divisors (75647646848).

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

51234424000 is an equidigital number, since it uses as much as digits as its factorization.

51234424000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6404330 (or 6404310 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 51234424000 its reverse (42443215), we get a palindrome (51276867215).

The spelling of 51234424000 in words is "fifty-one billion, two hundred thirty-four million, four hundred twenty-four thousand".