51351405053 has 8 divisors (see below), whose sum is σ = 55849054296. Its totient is φ = 46931976000.

The previous prime is 51351405043. The next prime is 51351405059. The reversal of 51351405053 is 35050415315.

It can be written as a sum of positive squares in 4 ways, for example, as 23356091929 + 27995313124 = 152827^2 + 167318^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51351405053 - 2⁶ = 51351404989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51351405059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19553678 + ... + 19556303.

It is an arithmetic number, because the mean of its divisors is an integer number (6981131787).

Almost surely, 2^51351405053 is an apocalyptic number.

It is an amenable number.

51351405053 is a deficient number, since it is larger than the sum of its proper divisors (4497649243).

51351405053 is a wasteful number, since it uses less digits than its factorization.

51351405053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39110095.

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 51351405053 in words is "fifty-one billion, three hundred fifty-one million, four hundred five thousand, fifty-three".