51906306 has 8 divisors (see below), whose sum is σ = 103812624. Its totient is φ = 17302100.

The previous prime is 51906299. The next prime is 51906311. The reversal of 51906306 is 60360915.

It is a happy number.

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

51906306 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4325520 + ... + 4325531.

It is an arithmetic number, because the mean of its divisors is an integer number (12976578).

Almost surely, 2^51906306 is an apocalyptic number.

51906306 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51906306 is a wasteful number, since it uses less digits than its factorization.

51906306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8651056.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 51906306 is about 7204.6031119001. The cubic root of 51906306 is about 373.0268053292.

The spelling of 51906306 in words is "fifty-one million, nine hundred six thousand, three hundred six".