51133343 has 2 divisors, whose sum is σ = 51133344. Its totient is φ = 51133342.

The previous prime is 51133307. The next prime is 51133367. The reversal of 51133343 is 34333115.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51133343 - 2⁶ = 51133279 is a prime.

It is a super-2 number, since 2×51133343² = 5229237532711298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51133843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25566671 + 25566672.

It is an arithmetic number, because the mean of its divisors is an integer number (25566672).

Almost surely, 2^51133343 is an apocalyptic number.

51133343 is a deficient number, since it is larger than the sum of its proper divisors (1).

51133343 is an equidigital number, since it uses as much as digits as its factorization.

51133343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 23.

The square root of 51133343 is about 7150.7582115465. The cubic root of 51133343 is about 371.1658937982.

Adding to 51133343 its reverse (34333115), we get a palindrome (85466458).

The spelling of 51133343 in words is "fifty-one million, one hundred thirty-three thousand, three hundred forty-three".