51404827 has 2 divisors, whose sum is σ = 51404828. Its totient is φ = 51404826.

The previous prime is 51404819. The next prime is 51404867. The reversal of 51404827 is 72840415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51404827 - 2³ = 51404819 is a prime.

It is not a weakly prime, because it can be changed into another prime (51404807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25702413 + 25702414.

It is an arithmetic number, because the mean of its divisors is an integer number (25702414).

Almost surely, 2^51404827 is an apocalyptic number.

51404827 is a deficient number, since it is larger than the sum of its proper divisors (1).

51404827 is an equidigital number, since it uses as much as digits as its factorization.

51404827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 51404827 is about 7169.7159636906. The cubic root of 51404827 is about 371.8216159228.

The spelling of 51404827 in words is "fifty-one million, four hundred four thousand, eight hundred twenty-seven".