51827863 has 2 divisors, whose sum is σ = 51827864. Its totient is φ = 51827862.

The previous prime is 51827837. The next prime is 51827869. The reversal of 51827863 is 36872815.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51827863 - 2¹³ = 51819671 is a prime.

It is a super-2 number, since 2×51827863² = 5372254766293538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51827869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25913931 + 25913932.

It is an arithmetic number, because the mean of its divisors is an integer number (25913932).

Almost surely, 2^51827863 is an apocalyptic number.

51827863 is a deficient number, since it is larger than the sum of its proper divisors (1).

51827863 is an equidigital number, since it uses as much as digits as its factorization.

51827863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 40.

The square root of 51827863 is about 7199.1571034393. The cubic root of 51827863 is about 372.8387993067.

The spelling of 51827863 in words is "fifty-one million, eight hundred twenty-seven thousand, eight hundred sixty-three".