51610220219 has 8 divisors (see below), whose sum is σ = 55978948368. Its totient is φ = 47389584640.

The previous prime is 51610220213. The next prime is 51610220251. The reversal of 51610220219 is 91202201615.

51610220219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51610220219 - 2⁸ = 51610219963 is a prime.

It is a super-2 number, since 2×51610220219² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51610220191 and 51610220200.

It is not an unprimeable number, because it can be changed into a prime (51610220213) 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, 37022417 + ... + 37023810.

It is an arithmetic number, because the mean of its divisors is an integer number (6997368546).

Almost surely, 2^51610220219 is an apocalyptic number.

51610220219 is a deficient number, since it is larger than the sum of its proper divisors (4368728149).

51610220219 is a wasteful number, since it uses less digits than its factorization.

51610220219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74046285.

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 51610220219 in words is "fifty-one billion, six hundred ten million, two hundred twenty thousand, two hundred nineteen".