51775307 has 2 divisors, whose sum is σ = 51775308. Its totient is φ = 51775306.

The previous prime is 51775291. The next prime is 51775309. The reversal of 51775307 is 70357715.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51775307 - 2⁴ = 51775291 is a prime.

Together with 51775309, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51775309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25887653 + 25887654.

It is an arithmetic number, because the mean of its divisors is an integer number (25887654).

Almost surely, 2^51775307 is an apocalyptic number.

51775307 is a deficient number, since it is larger than the sum of its proper divisors (1).

51775307 is an equidigital number, since it uses as much as digits as its factorization.

51775307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25725, while the sum is 35.

The square root of 51775307 is about 7195.5060280706. The cubic root of 51775307 is about 372.7127310625.

The spelling of 51775307 in words is "fifty-one million, seven hundred seventy-five thousand, three hundred seven".