51522235 has 4 divisors (see below), whose sum is σ = 61826688. Its totient is φ = 41217784.

The previous prime is 51522227. The next prime is 51522239. The reversal of 51522235 is 53222515.

It is a happy number.

51522235 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 is a cyclic number.

It is not a de Polignac number, because 51522235 - 2³ = 51522227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51522239) 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 in 3 ways as a sum of consecutive naturals, for example, 5152219 + ... + 5152228.

It is an arithmetic number, because the mean of its divisors is an integer number (15456672).

Almost surely, 2^51522235 is an apocalyptic number.

51522235 is a deficient number, since it is larger than the sum of its proper divisors (10304453).

51522235 is a wasteful number, since it uses less digits than its factorization.

51522235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10304452.

The product of its digits is 3000, while the sum is 25.

The square root of 51522235 is about 7177.8990658827. The cubic root of 51522235 is about 372.1044793634.

The spelling of 51522235 in words is "fifty-one million, five hundred twenty-two thousand, two hundred thirty-five".