51304308 has 48 divisors (see below), whose sum is σ = 131592384. Its totient is φ = 15427840.

The previous prime is 51304291. The next prime is 51304333. The reversal of 51304308 is 80340315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16666 + ... + 19502.

It is an arithmetic number, because the mean of its divisors is an integer number (2741508).

Almost surely, 2^51304308 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51304308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65796192).

51304308 is an abundant number, since it is smaller than the sum of its proper divisors (80288076).

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

51304308 is a wasteful number, since it uses less digits than its factorization.

51304308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992 (or 2990 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 51304308 is about 7162.7025625807. The cubic root of 51304308 is about 371.5790996243.

The spelling of 51304308 in words is "fifty-one million, three hundred four thousand, three hundred eight".