5251402835172 has 288 divisors, whose sum is σ = 14821479036000. Its totient is φ = 1557245730816.

The previous prime is 5251402835099. The next prime is 5251402835201. The reversal of 5251402835172 is 2715382041525.

5251402835172 is a `hidden beast` number, since 5 + 2 + 51 + 4 + 0 + 2 + 83 + 517 + 2 = 666.

It can be written as a sum of positive squares in 16 ways, for example, as 1055435694336 + 4195967140836 = 1027344^2 + 2048406^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1207494454 + ... + 1207498802.

It is an arithmetic number, because the mean of its divisors is an integer number (51463468875).

Almost surely, 2^{5251402835172} is an apocalyptic number.

5251402835172 is a gapful number since it is divisible by the number (52) 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 5251402835172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7410739518000).

5251402835172 is an abundant number, since it is smaller than the sum of its proper divisors (9570076200828).

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

5251402835172 is a wasteful number, since it uses less digits than its factorization.

5251402835172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055 (or 5050 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

Adding to 5251402835172 its reverse (2715382041525), we get a palindrome (7966784876697).

The spelling of 5251402835172 in words is "five trillion, two hundred fifty-one billion, four hundred two million, eight hundred thirty-five thousand, one hundred seventy-two".