51943906 has 8 divisors (see below), whose sum is σ = 89046720. Its totient is φ = 22261668.

The previous prime is 51943861. The next prime is 51943939. The reversal of 51943906 is 60934915.

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

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, 1855126 + ... + 1855153.

It is an arithmetic number, because the mean of its divisors is an integer number (11130840).

Almost surely, 2^51943906 is an apocalyptic number.

51943906 is a deficient number, since it is larger than the sum of its proper divisors (37102814).

51943906 is a wasteful number, since it uses less digits than its factorization.

51943906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3710288.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 51943906 is about 7207.2120823520. The cubic root of 51943906 is about 373.1168549054.

The spelling of 51943906 in words is "fifty-one million, nine hundred forty-three thousand, nine hundred six".