51247226 has 4 divisors (see below), whose sum is σ = 76870842. Its totient is φ = 25623612.

The previous prime is 51247219. The next prime is 51247267. The reversal of 51247226 is 62274215.

It is a happy number.

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., 37222201 + 14025025 = 6101^2 + 3745^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12811805 + ... + 12811808.

Almost surely, 2^51247226 is an apocalyptic number.

51247226 is a deficient number, since it is larger than the sum of its proper divisors (25623616).

51247226 is a wasteful number, since it uses less digits than its factorization.

51247226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25623615.

The product of its digits is 6720, while the sum is 29.

The square root of 51247226 is about 7158.7167844524. The cubic root of 51247226 is about 371.4412401850.

The spelling of 51247226 in words is "fifty-one million, two hundred forty-seven thousand, two hundred twenty-six".