51633706 has 16 divisors (see below), whose sum is σ = 79081920. Its totient is φ = 25278880.

The previous prime is 51633691. The next prime is 51633707. The reversal of 51633706 is 60733615.

It is not an unprimeable number, because it can be changed into a prime (51633707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17691 + ... + 20401.

It is an arithmetic number, because the mean of its divisors is an integer number (4942620).

Almost surely, 2^51633706 is an apocalyptic number.

51633706 is a deficient number, since it is larger than the sum of its proper divisors (27448214).

51633706 is a wasteful number, since it uses less digits than its factorization.

51633706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2909.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 51633706 is about 7185.6597470239. The cubic root of 51633706 is about 372.3726417755.

Subtracting 51633706 from its reverse (60733615), we obtain a palindrome (9099909).

The spelling of 51633706 in words is "fifty-one million, six hundred thirty-three thousand, seven hundred six".