51404567 has 2 divisors, whose sum is σ = 51404568. Its totient is φ = 51404566.

The previous prime is 51404539. The next prime is 51404569. The reversal of 51404567 is 76540415.

51404567 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51404567 - 2⁶ = 51404503 is a prime.

Together with 51404569, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51404569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25702283 + 25702284.

It is an arithmetic number, because the mean of its divisors is an integer number (25702284).

Almost surely, 2^51404567 is an apocalyptic number.

51404567 is a deficient number, since it is larger than the sum of its proper divisors (1).

51404567 is an equidigital number, since it uses as much as digits as its factorization.

51404567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 51404567 is about 7169.6978318476. The cubic root of 51404567 is about 371.8209890440.

The spelling of 51404567 in words is "fifty-one million, four hundred four thousand, five hundred sixty-seven".