51441791 has 2 divisors, whose sum is σ = 51441792. Its totient is φ = 51441790.

The previous prime is 51441773. The next prime is 51441799. The reversal of 51441791 is 19714415.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51441791 is a prime.

It is a super-2 number, since 2×51441791² = 5292515722575362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51441799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25720895 + 25720896.

It is an arithmetic number, because the mean of its divisors is an integer number (25720896).

Almost surely, 2^51441791 is an apocalyptic number.

51441791 is a deficient number, since it is larger than the sum of its proper divisors (1).

51441791 is an equidigital number, since it uses as much as digits as its factorization.

51441791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 32.

The square root of 51441791 is about 7172.2932873663. The cubic root of 51441791 is about 371.9107172906.

The spelling of 51441791 in words is "fifty-one million, four hundred forty-one thousand, seven hundred ninety-one".