51559058949 has 16 divisors (see below), whose sum is σ = 70127164800. Its totient is φ = 33683397696.

The previous prime is 51559058911. The next prime is 51559058951. The reversal of 51559058949 is 94985095515.

It is not a de Polignac number, because 51559058949 - 2⁹ = 51559058437 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51559058892 and 51559058901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51559058909) 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, 63769 + ... + 327390.

It is an arithmetic number, because the mean of its divisors is an integer number (4382947800).

Almost surely, 2^51559058949 is an apocalyptic number.

It is an amenable number.

51559058949 is a deficient number, since it is larger than the sum of its proper divisors (18568105851).

51559058949 is a wasteful number, since it uses less digits than its factorization.

51559058949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392044.

The product of its (nonzero) digits is 14580000, while the sum is 60.

The spelling of 51559058949 in words is "fifty-one billion, five hundred fifty-nine million, fifty-eight thousand, nine hundred forty-nine".