51787343 has 2 divisors, whose sum is σ = 51787344. Its totient is φ = 51787342.

The previous prime is 51787327. The next prime is 51787363. The reversal of 51787343 is 34378715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51787343 - 2⁴ = 51787327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51787297 and 51787306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51787303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25893671 + 25893672.

It is an arithmetic number, because the mean of its divisors is an integer number (25893672).

Almost surely, 2^51787343 is an apocalyptic number.

51787343 is a deficient number, since it is larger than the sum of its proper divisors (1).

51787343 is an equidigital number, since it uses as much as digits as its factorization.

51787343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 38.

The square root of 51787343 is about 7196.3423348254. The cubic root of 51787343 is about 372.7416098410.

It can be divided in two parts, 5178 and 7343, that added together give a palindrome (12521).

The spelling of 51787343 in words is "fifty-one million, seven hundred eighty-seven thousand, three hundred forty-three".