51532343 has 2 divisors, whose sum is σ = 51532344. Its totient is φ = 51532342.

The previous prime is 51532339. The next prime is 51532357. The reversal of 51532343 is 34323515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51532343 - 2² = 51532339 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51532543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25766171 + 25766172.

It is an arithmetic number, because the mean of its divisors is an integer number (25766172).

Almost surely, 2^51532343 is an apocalyptic number.

51532343 is a deficient number, since it is larger than the sum of its proper divisors (1).

51532343 is an equidigital number, since it uses as much as digits as its factorization.

51532343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 26.

The square root of 51532343 is about 7178.6031371013. The cubic root of 51532343 is about 372.1288118103.

Adding to 51532343 its reverse (34323515), we get a palindrome (85855858).

The spelling of 51532343 in words is "fifty-one million, five hundred thirty-two thousand, three hundred forty-three".