51441739 has 2 divisors, whose sum is σ = 51441740. Its totient is φ = 51441738.

The previous prime is 51441707. The next prime is 51441743. The reversal of 51441739 is 93714415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51441739 - 2⁵ = 51441707 is a prime.

It is a super-2 number, since 2×51441739² = 5292505022688242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51441769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25720869 + 25720870.

It is an arithmetic number, because the mean of its divisors is an integer number (25720870).

Almost surely, 2^51441739 is an apocalyptic number.

51441739 is a deficient number, since it is larger than the sum of its proper divisors (1).

51441739 is an equidigital number, since it uses as much as digits as its factorization.

51441739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 51441739 is about 7172.2896623045. The cubic root of 51441739 is about 371.9105919751.

The spelling of 51441739 in words is "fifty-one million, four hundred forty-one thousand, seven hundred thirty-nine".