51334511 has 4 divisors (see below), whose sum is σ = 51388032. Its totient is φ = 51280992.

The previous prime is 51334499. The next prime is 51334513. The reversal of 51334511 is 11543315.

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 51334511 - 2²² = 47140207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51334513) 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, 25295 + ... + 27248.

It is an arithmetic number, because the mean of its divisors is an integer number (12847008).

Almost surely, 2^51334511 is an apocalyptic number.

51334511 is a deficient number, since it is larger than the sum of its proper divisors (53521).

51334511 is an equidigital number, since it uses as much as digits as its factorization.

51334511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53520.

The product of its digits is 900, while the sum is 23.

The square root of 51334511 is about 7164.8106046148. The cubic root of 51334511 is about 371.6520018970.

Adding to 51334511 its reverse (11543315), we get a palindrome (62877826).

The spelling of 51334511 in words is "fifty-one million, three hundred thirty-four thousand, five hundred eleven".