51476803225 has 9 divisors (see below), whose sum is σ = 63832642717. Its totient is φ = 41180535040.

The previous prime is 51476803211. The next prime is 51476803229. The reversal of 51476803225 is 52230867415.

The square root of 51476803225 is 226885.

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 380913289 + 51095889936 = 19517^2 + 226044^2 .

It is not a de Polignac number, because 51476803225 - 2¹¹ = 51476801177 is a prime.

It is a super-2 number, since 2×51476803225² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51476803229) 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, 1111737 + ... + 1157113.

Almost surely, 2^51476803225 is an apocalyptic number.

51476803225 is the 226885-th square number.

51476803225 is the 113443-rd centered octagonal number.

It is an amenable number.

51476803225 is a deficient number, since it is larger than the sum of its proper divisors (12355839492).

51476803225 is an frugal number, since it uses more digits than its factorization.

51476803225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90764 (or 45382 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 51476803225 in words is "fifty-one billion, four hundred seventy-six million, eight hundred three thousand, two hundred twenty-five".