51826087 has 2 divisors, whose sum is σ = 51826088. Its totient is φ = 51826086.

The previous prime is 51826063. The next prime is 51826139. The reversal of 51826087 is 78062815.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51826087 - 2⁷ = 51825959 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51826037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25913043 + 25913044.

It is an arithmetic number, because the mean of its divisors is an integer number (25913044).

Almost surely, 2^51826087 is an apocalyptic number.

51826087 is a deficient number, since it is larger than the sum of its proper divisors (1).

51826087 is an equidigital number, since it uses as much as digits as its factorization.

51826087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 51826087 is about 7199.0337546090. The cubic root of 51826087 is about 372.8345405340.

The spelling of 51826087 in words is "fifty-one million, eight hundred twenty-six thousand, eighty-seven".