5251161256000 has 112 divisors (see below), whose sum is σ = 14186728438272. Its totient is φ = 1909513152000.

The previous prime is 5251161255973. The next prime is 5251161256031. The reversal of 5251161256000 is 6521611525.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29748144 + ... + 29924143.

Almost surely, 2^{5251161256000} is an apocalyptic number.

5251161256000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5251161256000 is an abundant number, since it is smaller than the sum of its proper divisors (8935567182272).

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

5251161256000 is a wasteful number, since it uses less digits than its factorization.

5251161256000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59672325 (or 59672305 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 34.

Adding to 5251161256000 its reverse (6521611525), we get a palindrome (5257682867525).

The spelling of 5251161256000 in words is "five trillion, two hundred fifty-one billion, one hundred sixty-one million, two hundred fifty-six thousand".