51222695 has 8 divisors (see below), whose sum is σ = 63450240. Its totient is φ = 39656160.

The previous prime is 51222659. The next prime is 51222707. The reversal of 51222695 is 59622215.

51222695 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51222695 - 2⁶ = 51222631 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 165080 + ... + 165389.

It is an arithmetic number, because the mean of its divisors is an integer number (7931280).

Almost surely, 2^51222695 is an apocalyptic number.

51222695 is a deficient number, since it is larger than the sum of its proper divisors (12227545).

51222695 is a wasteful number, since it uses less digits than its factorization.

51222695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330505.

The product of its digits is 10800, while the sum is 32.

The square root of 51222695 is about 7157.0032136363. The cubic root of 51222695 is about 371.3819636150.

The spelling of 51222695 in words is "fifty-one million, two hundred twenty-two thousand, six hundred ninety-five".