51633266 has 16 divisors (see below), whose sum is σ = 78343200. Its totient is φ = 25520928.

The previous prime is 51633251. The next prime is 51633269. The reversal of 51633266 is 66233615.

It is not an unprimeable number, because it can be changed into a prime (51633269) 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, 83105 + ... + 83723.

It is an arithmetic number, because the mean of its divisors is an integer number (4896450).

Almost surely, 2^51633266 is an apocalyptic number.

51633266 is a deficient number, since it is larger than the sum of its proper divisors (26709934).

51633266 is a wasteful number, since it uses less digits than its factorization.

51633266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033.

The product of its digits is 19440, while the sum is 32.

The square root of 51633266 is about 7185.6291304241. The cubic root of 51633266 is about 372.3715840399.

The spelling of 51633266 in words is "fifty-one million, six hundred thirty-three thousand, two hundred sixty-six".