51144251514450 has 48 divisors (see below), whose sum is σ = 127309259632320. Its totient is φ = 13587766438720.

The previous prime is 51144251514341. The next prime is 51144251514481. The reversal of 51144251514450 is 5441515244115.

It is a super-2 number, since 2×51144251514450² (a number of 28 digits) contains 22 as substring.

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, 633717414 + ... + 633798113.

It is an arithmetic number, because the mean of its divisors is an integer number (2652276242340).

Almost surely, 2^{51144251514450} is an apocalyptic number.

51144251514450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51144251514450 is an abundant number, since it is smaller than the sum of its proper divisors (76165008117870).

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

51144251514450 is a wasteful number, since it uses less digits than its factorization.

51144251514450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267515811 (or 1267515806 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 42.

Adding to 51144251514450 its reverse (5441515244115), we get a palindrome (56585766758565).

The spelling of 51144251514450 in words is "fifty-one trillion, one hundred forty-four billion, two hundred fifty-one million, five hundred fourteen thousand, four hundred fifty".