51229307 has 2 divisors, whose sum is σ = 51229308. Its totient is φ = 51229306.

The previous prime is 51229291. The next prime is 51229319. The reversal of 51229307 is 70392215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51229307 - 2⁴ = 51229291 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51229307.

It is not a weakly prime, because it can be changed into another prime (51229327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25614653 + 25614654.

It is an arithmetic number, because the mean of its divisors is an integer number (25614654).

Almost surely, 2^51229307 is an apocalyptic number.

51229307 is a deficient number, since it is larger than the sum of its proper divisors (1).

51229307 is an equidigital number, since it uses as much as digits as its factorization.

51229307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 51229307 is about 7157.4651239108. The cubic root of 51229307 is about 371.3979426772.

The spelling of 51229307 in words is "fifty-one million, two hundred twenty-nine thousand, three hundred seven".