51463191025 has 27 divisors (see below), whose sum is σ = 64998812001. Its totient is φ = 40420116480.

The previous prime is 51463191011. The next prime is 51463191041. The reversal of 51463191025 is 52019136415.

The square root of 51463191025 is 226855.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3188070369 + 48275120656 = 56463^2 + 219716^2 .

It is not a de Polignac number, because 51463191025 - 2¹¹ = 51463188977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 66921841 + ... + 66922609.

Almost surely, 2^51463191025 is an apocalyptic number.

51463191025 is the 226855-th square number.

51463191025 is the 113428-th centered octagonal number.

It is an amenable number.

51463191025 is a deficient number, since it is larger than the sum of its proper divisors (13535620976).

51463191025 is an frugal number, since it uses more digits than its factorization.

51463191025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666 (or 833 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 51463191025 in words is "fifty-one billion, four hundred sixty-three million, one hundred ninety-one thousand, twenty-five".