51000313445 has 8 divisors (see below), whose sum is σ = 62355100536. Its totient is φ = 40030434496.

The previous prime is 51000313439. The next prime is 51000313457. The reversal of 51000313445 is 54431300015.

It can be written as a sum of positive squares in 4 ways, for example, as 14675384164 + 36324929281 = 121142^2 + 190591^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51000313445 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 96226742 + ... + 96227271.

It is an arithmetic number, because the mean of its divisors is an integer number (7794387567).

Almost surely, 2^51000313445 is an apocalyptic number.

It is an amenable number.

51000313445 is a deficient number, since it is larger than the sum of its proper divisors (11354787091).

51000313445 is a wasteful number, since it uses less digits than its factorization.

51000313445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192454071.

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 51000313445 in words is "fifty-one billion, three hundred thirteen thousand, four hundred forty-five".