51813067 has 2 divisors, whose sum is σ = 51813068. Its totient is φ = 51813066.

The previous prime is 51813037. The next prime is 51813071. The reversal of 51813067 is 76031815.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51813067 - 2⁷ = 51812939 is a prime.

It is not a weakly prime, because it can be changed into another prime (51813007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25906533 + 25906534.

It is an arithmetic number, because the mean of its divisors is an integer number (25906534).

Almost surely, 2^51813067 is an apocalyptic number.

51813067 is a deficient number, since it is larger than the sum of its proper divisors (1).

51813067 is an equidigital number, since it uses as much as digits as its factorization.

51813067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 51813067 is about 7198.1294097842. The cubic root of 51813067 is about 372.8033161541.

The spelling of 51813067 in words is "fifty-one million, eight hundred thirteen thousand, sixty-seven".