51152243 has 2 divisors, whose sum is σ = 51152244. Its totient is φ = 51152242.

The previous prime is 51152197. The next prime is 51152249. The reversal of 51152243 is 34225115.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51152243 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51152249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25576121 + 25576122.

It is an arithmetic number, because the mean of its divisors is an integer number (25576122).

Almost surely, 2^51152243 is an apocalyptic number.

51152243 is a deficient number, since it is larger than the sum of its proper divisors (1).

51152243 is an equidigital number, since it uses as much as digits as its factorization.

51152243 is an evil number, because the sum of its binary digits is even.

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

The square root of 51152243 is about 7152.0796276328. The cubic root of 51152243 is about 371.2116185045.

Adding to 51152243 its reverse (34225115), we get a palindrome (85377358).

The spelling of 51152243 in words is "fifty-one million, one hundred fifty-two thousand, two hundred forty-three".