52451352400 has 120 divisors (see below), whose sum is σ = 126886503744. Its totient is φ = 20835916800.

The previous prime is 52451352397. The next prime is 52451352467. The reversal of 52451352400 is 425315425.

It is a super-2 number, since 2×52451352400² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48075855 + ... + 48076945.

Almost surely, 2^52451352400 is an apocalyptic number.

52451352400 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 52451352400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63443251872).

52451352400 is an abundant number, since it is smaller than the sum of its proper divisors (74435151344).

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

52451352400 is a wasteful number, since it uses less digits than its factorization.

52451352400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829 (or 1818 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 52451352400 its reverse (425315425), we get a palindrome (52876667825).

The spelling of 52451352400 in words is "fifty-two billion, four hundred fifty-one million, three hundred fifty-two thousand, four hundred".