51733091 has 4 divisors (see below), whose sum is σ = 54776232. Its totient is φ = 48689952.

The previous prime is 51733081. The next prime is 51733111. The reversal of 51733091 is 19033715.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51733091 - 2⁶ = 51733027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51733051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1521545 + ... + 1521578.

It is an arithmetic number, because the mean of its divisors is an integer number (13694058).

Almost surely, 2^51733091 is an apocalyptic number.

51733091 is a deficient number, since it is larger than the sum of its proper divisors (3043141).

51733091 is a wasteful number, since it uses less digits than its factorization.

51733091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3043140.

The product of its (nonzero) digits is 2835, while the sum is 29.

The square root of 51733091 is about 7192.5719322090. The cubic root of 51733091 is about 372.6114040016.

The spelling of 51733091 in words is "fifty-one million, seven hundred thirty-three thousand, ninety-one".