51306226 has 16 divisors (see below), whose sum is σ = 79006104. Its totient is φ = 24978304.

The previous prime is 51306197. The next prime is 51306239. The reversal of 51306226 is 62260315.

It can be written as a sum of positive squares in 4 ways, for example, as 51108201 + 198025 = 7149^2 + 445^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51306226.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12756 + ... + 16288.

Almost surely, 2^51306226 is an apocalyptic number.

51306226 is a deficient number, since it is larger than the sum of its proper divisors (27699878).

51306226 is a wasteful number, since it uses less digits than its factorization.

51306226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3725.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 51306226 is about 7162.8364493404. The cubic root of 51306226 is about 371.5837300335.

The spelling of 51306226 in words is "fifty-one million, three hundred six thousand, two hundred twenty-six".