51044531 has 2 divisors, whose sum is σ = 51044532. Its totient is φ = 51044530.

The previous prime is 51044519. The next prime is 51044533. The reversal of 51044531 is 13544015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51044531 - 2²² = 46850227 is a prime.

It is a super-2 number, since 2×51044531² = 5211088290019922, which contains 22 as substring.

Together with 51044533, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 51044497 and 51044506.

It is not a weakly prime, because it can be changed into another prime (51044533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25522265 + 25522266.

It is an arithmetic number, because the mean of its divisors is an integer number (25522266).

Almost surely, 2^51044531 is an apocalyptic number.

51044531 is a deficient number, since it is larger than the sum of its proper divisors (1).

51044531 is an equidigital number, since it uses as much as digits as its factorization.

51044531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 51044531 is about 7144.5455418802. The cubic root of 51044531 is about 370.9508802240.

Adding to 51044531 its reverse (13544015), we get a palindrome (64588546).

The spelling of 51044531 in words is "fifty-one million, forty-four thousand, five hundred thirty-one".