51225806271 has 16 divisors (see below), whose sum is σ = 68950787328. Its totient is φ = 33825787200.

The previous prime is 51225806249. The next prime is 51225806279. The reversal of 51225806271 is 17260852215.

It is not a de Polignac number, because 51225806271 - 2¹⁴ = 51225789887 is a prime.

It is a super-2 number, since 2×51225806271² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51225806279) 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, 3018891 + ... + 3035811.

It is an arithmetic number, because the mean of its divisors is an integer number (4309424208).

Almost surely, 2^51225806271 is an apocalyptic number.

51225806271 is a deficient number, since it is larger than the sum of its proper divisors (17724981057).

51225806271 is a wasteful number, since it uses less digits than its factorization.

51225806271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26462.

The product of its (nonzero) digits is 67200, while the sum is 39.

The spelling of 51225806271 in words is "fifty-one billion, two hundred twenty-five million, eight hundred six thousand, two hundred seventy-one".