51475744801 has 16 divisors (see below), whose sum is σ = 55650445200. Its totient is φ = 47331986688.

The previous prime is 51475744787. The next prime is 51475744819. The reversal of 51475744801 is 10844757415.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 19656320401 + 31819424400 = 140201^2 + 178380^2 .

It is a cyclic number.

It is not a de Polignac number, because 51475744801 - 2¹⁵ = 51475712033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51475744301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7039135 + ... + 7046443.

It is an arithmetic number, because the mean of its divisors is an integer number (3478152825).

Almost surely, 2^51475744801 is an apocalyptic number.

It is an amenable number.

51475744801 is a deficient number, since it is larger than the sum of its proper divisors (4174700399).

51475744801 is a wasteful number, since it uses less digits than its factorization.

51475744801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9348.

The product of its (nonzero) digits is 627200, while the sum is 46.

The spelling of 51475744801 in words is "fifty-one billion, four hundred seventy-five million, seven hundred forty-four thousand, eight hundred one".