51534911 has 2 divisors, whose sum is σ = 51534912. Its totient is φ = 51534910.

The previous prime is 51534887. The next prime is 51534913. The reversal of 51534911 is 11943515.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51534911 is a prime.

Together with 51534913, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51534913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25767455 + 25767456.

It is an arithmetic number, because the mean of its divisors is an integer number (25767456).

Almost surely, 2^51534911 is an apocalyptic number.

51534911 is a deficient number, since it is larger than the sum of its proper divisors (1).

51534911 is an equidigital number, since it uses as much as digits as its factorization.

51534911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 29.

The square root of 51534911 is about 7178.7819997546. The cubic root of 51534911 is about 372.1349931122.

The spelling of 51534911 in words is "fifty-one million, five hundred thirty-four thousand, nine hundred eleven".