51455354352 has 40 divisors (see below), whose sum is σ = 132944921040. Its totient is φ = 17149386240.

The previous prime is 51455354329. The next prime is 51455354369. The reversal of 51455354352 is 25345355415.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290202 + ... + 432582.

It is an arithmetic number, because the mean of its divisors is an integer number (3323623026).

Almost surely, 2^51455354352 is an apocalyptic number.

It is an amenable number.

51455354352 is an abundant number, since it is smaller than the sum of its proper divisors (81489566688).

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

51455354352 is a wasteful number, since it uses less digits than its factorization.

51455354352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149921 (or 149915 counting only the distinct ones).

The product of its digits is 900000, while the sum is 42.

The spelling of 51455354352 in words is "fifty-one billion, four hundred fifty-five million, three hundred fifty-four thousand, three hundred fifty-two".