51634352227 has 4 divisors (see below), whose sum is σ = 52835151160. Its totient is φ = 50433553296.

The previous prime is 51634352179. The next prime is 51634352243. The reversal of 51634352227 is 72225343615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72225343615 = 5 ⋅14445068723.

It is a cyclic number.

It is not a de Polignac number, because 51634352227 - 2¹⁹ = 51633827939 is a prime.

It is a super-2 number, since 2×51634352227² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51634352227.

It is not an unprimeable number, because it can be changed into a prime (51634322227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600399402 + ... + 600399487.

It is an arithmetic number, because the mean of its divisors is an integer number (13208787790).

Almost surely, 2^51634352227 is an apocalyptic number.

51634352227 is a deficient number, since it is larger than the sum of its proper divisors (1200798933).

51634352227 is a wasteful number, since it uses less digits than its factorization.

51634352227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200798932.

The product of its digits is 302400, while the sum is 40.

The spelling of 51634352227 in words is "fifty-one billion, six hundred thirty-four million, three hundred fifty-two thousand, two hundred twenty-seven".