51225860227 has 4 divisors (see below), whose sum is σ = 51238584856. Its totient is φ = 51213135600.

The previous prime is 51225860171. The next prime is 51225860239. The reversal of 51225860227 is 72206852215.

51225860227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51225860227 - 2²⁷ = 51091642499 is a prime.

It is a super-2 number, since 2×51225860227² (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 51225860227.

It is not an unprimeable number, because it can be changed into a prime (51225860267) 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, 6356274 + ... + 6364327.

It is an arithmetic number, because the mean of its divisors is an integer number (12809646214).

Almost surely, 2^51225860227 is an apocalyptic number.

51225860227 is a deficient number, since it is larger than the sum of its proper divisors (12724629).

51225860227 is a wasteful number, since it uses less digits than its factorization.

51225860227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12724628.

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 51225860227 in words is "fifty-one billion, two hundred twenty-five million, eight hundred sixty thousand, two hundred twenty-seven".