51046091 has 4 divisors (see below), whose sum is σ = 51072384. Its totient is φ = 51019800.

The previous prime is 51046067. The next prime is 51046109. The reversal of 51046091 is 19064015.

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 51046091 - 2²² = 46851787 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51046091.

It is not an unprimeable number, because it can be changed into a prime (51046001) 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, 9980 + ... + 14201.

It is an arithmetic number, because the mean of its divisors is an integer number (12768096).

Almost surely, 2^51046091 is an apocalyptic number.

51046091 is a deficient number, since it is larger than the sum of its proper divisors (26293).

51046091 is a wasteful number, since it uses less digits than its factorization.

51046091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26292.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 51046091 is about 7144.6547152399. The cubic root of 51046091 is about 370.9546591301.

The spelling of 51046091 in words is "fifty-one million, forty-six thousand, ninety-one".