51349552057 has 8 divisors (see below), whose sum is σ = 54149212800. Its totient is φ = 48559596624.

The previous prime is 51349552049. The next prime is 51349552081. The reversal of 51349552057 is 75025594315.

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

It is a cyclic number.

It is not a de Polignac number, because 51349552057 - 2³ = 51349552049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51349551998 and 51349552016.

It is not an unprimeable number, because it can be changed into a prime (51349552027) 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, 2415457 + ... + 2436622.

It is an arithmetic number, because the mean of its divisors is an integer number (6768651600).

Almost surely, 2^51349552057 is an apocalyptic number.

It is an amenable number.

51349552057 is a deficient number, since it is larger than the sum of its proper divisors (2799660743).

51349552057 is a wasteful number, since it uses less digits than its factorization.

51349552057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4852655.

The product of its (nonzero) digits is 945000, while the sum is 46.

The spelling of 51349552057 in words is "fifty-one billion, three hundred forty-nine million, five hundred fifty-two thousand, fifty-seven".