51451395241 has 9 divisors (see below), whose sum is σ = 51952722213. Its totient is φ = 50954866560.

The previous prime is 51451395223. The next prime is 51451395251. The reversal of 51451395241 is 14259315415.

The square root of 51451395241 is 226829.

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 330185241 + 51121210000 = 18171^2 + 226100^2 .

It is not a de Polignac number, because 51451395241 - 2¹³ = 51451387049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51451395194 and 51451395203.

It is not an unprimeable number, because it can be changed into a prime (51451395251) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 24723321 + ... + 24725401.

Almost surely, 2^51451395241 is an apocalyptic number.

51451395241 is the 226829-th square number.

51451395241 is the 113415-th centered octagonal number.

It is an amenable number.

51451395241 is a deficient number, since it is larger than the sum of its proper divisors (501326972).

51451395241 is an frugal number, since it uses more digits than its factorization.

51451395241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4380 (or 2190 counting only the distinct ones).

The product of its digits is 108000, while the sum is 40.

The spelling of 51451395241 in words is "fifty-one billion, four hundred fifty-one million, three hundred ninety-five thousand, two hundred forty-one".