51404767 has 2 divisors, whose sum is σ = 51404768. Its totient is φ = 51404766.

The previous prime is 51404741. The next prime is 51404807. The reversal of 51404767 is 76740415.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51404767 - 2¹¹ = 51402719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51404707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25702383 + 25702384.

It is an arithmetic number, because the mean of its divisors is an integer number (25702384).

Almost surely, 2^51404767 is an apocalyptic number.

51404767 is a deficient number, since it is larger than the sum of its proper divisors (1).

51404767 is an equidigital number, since it uses as much as digits as its factorization.

51404767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 51404767 is about 7169.7117794232. The cubic root of 51404767 is about 371.8214712586.

The spelling of 51404767 in words is "fifty-one million, four hundred four thousand, seven hundred sixty-seven".