51868027 has 2 divisors, whose sum is σ = 51868028. Its totient is φ = 51868026.

The previous prime is 51867971. The next prime is 51868039. The reversal of 51868027 is 72086815.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51868027 - 2¹⁹ = 51343739 is a prime.

It is not a weakly prime, because it can be changed into another prime (51868057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25934013 + 25934014.

It is an arithmetic number, because the mean of its divisors is an integer number (25934014).

Almost surely, 2^51868027 is an apocalyptic number.

51868027 is a deficient number, since it is larger than the sum of its proper divisors (1).

51868027 is an equidigital number, since it uses as much as digits as its factorization.

51868027 is an evil number, because the sum of its binary digits is even.

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

The square root of 51868027 is about 7201.9460564489. The cubic root of 51868027 is about 372.9350849088.

The spelling of 51868027 in words is "fifty-one million, eight hundred sixty-eight thousand, twenty-seven".