51015226 has 4 divisors (see below), whose sum is σ = 76522842. Its totient is φ = 25507612.

The previous prime is 51015221. The next prime is 51015229. The reversal of 51015226 is 62251015.

51015226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28462225 + 22553001 = 5335^2 + 4749^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51015197 and 51015206.

It is not an unprimeable number, because it can be changed into a prime (51015221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12753805 + ... + 12753808.

Almost surely, 2^51015226 is an apocalyptic number.

51015226 is a deficient number, since it is larger than the sum of its proper divisors (25507616).

51015226 is a wasteful number, since it uses less digits than its factorization.

51015226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25507615.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 51015226 is about 7142.4943822169. The cubic root of 51015226 is about 370.8798781903.

The spelling of 51015226 in words is "fifty-one million, fifteen thousand, two hundred twenty-six".