51403456254 has 16 divisors (see below), whose sum is σ = 108217802880. Its totient is φ = 16232670360.

The previous prime is 51403456241. The next prime is 51403456261. The reversal of 51403456254 is 45265430415.

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, 225453642 + ... + 225453869.

It is an arithmetic number, because the mean of its divisors is an integer number (6763612680).

Almost surely, 2^51403456254 is an apocalyptic number.

51403456254 is an abundant number, since it is smaller than the sum of its proper divisors (56814346626).

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

51403456254 is a wasteful number, since it uses less digits than its factorization.

51403456254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450907535.

The product of its (nonzero) digits is 288000, while the sum is 39.

Adding to 51403456254 its reverse (45265430415), we get a palindrome (96668886669).

The spelling of 51403456254 in words is "fifty-one billion, four hundred three million, four hundred fifty-six thousand, two hundred fifty-four".