51473286 has 64 divisors (see below), whose sum is σ = 119266560. Its totient is φ = 16441920.

The previous prime is 51473273. The next prime is 51473291. The reversal of 51473286 is 68237415.

It is a self number, because there is not a number n which added to its sum of digits gives 51473286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148165 + ... + 148511.

It is an arithmetic number, because the mean of its divisors is an integer number (1863540).

Almost surely, 2^51473286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51473286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59633280).

51473286 is an abundant number, since it is smaller than the sum of its proper divisors (67793274).

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

51473286 is a wasteful number, since it uses less digits than its factorization.

51473286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 460 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 51473286 is about 7174.4885532002. The cubic root of 51473286 is about 371.9866020149.

The spelling of 51473286 in words is "fifty-one million, four hundred seventy-three thousand, two hundred eighty-six".