51244254030 has 16 divisors (see below), whose sum is σ = 122986209744. Its totient is φ = 13665134400.

The previous prime is 51244254029. The next prime is 51244254041. The reversal of 51244254030 is 3045244215.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1708141801 = 51244254030 / (5 + 1 + 2 + 4 + 4 + 2 + 5 + 4 + 0 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 854070871 + ... + 854070930.

It is an arithmetic number, because the mean of its divisors is an integer number (7686638109).

Almost surely, 2^51244254030 is an apocalyptic number.

51244254030 is an abundant number, since it is smaller than the sum of its proper divisors (71741955714).

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

51244254030 is a wasteful number, since it uses less digits than its factorization.

51244254030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708141811.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 51244254030 its reverse (3045244215), we get a palindrome (54289498245).

The spelling of 51244254030 in words is "fifty-one billion, two hundred forty-four million, two hundred fifty-four thousand, thirty".