51323286 has 24 divisors (see below), whose sum is σ = 119405880. Its totient is φ = 14663712.

The previous prime is 51323269. The next prime is 51323287. The reversal of 51323286 is 68232315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51323287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86991 + ... + 87578.

It is an arithmetic number, because the mean of its divisors is an integer number (4975245).

Almost surely, 2^51323286 is an apocalyptic number.

51323286 is an abundant number, since it is smaller than the sum of its proper divisors (68082594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51323286 is a wasteful number, since it uses less digits than its factorization.

51323286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174588 (or 174581 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 51323286 is about 7164.0272193788. The cubic root of 51323286 is about 371.6249109742.

The spelling of 51323286 in words is "fifty-one million, three hundred twenty-three thousand, two hundred eighty-six".