51857627 has 2 divisors, whose sum is σ = 51857628. Its totient is φ = 51857626.

The previous prime is 51857581. The next prime is 51857629. The reversal of 51857627 is 72675815.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51857627 - 2⁶ = 51857563 is a prime.

It is a super-2 number, since 2×51857627² = 5378426956142258, which contains 22 as substring.

Together with 51857629, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51857629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25928813 + 25928814.

It is an arithmetic number, because the mean of its divisors is an integer number (25928814).

Almost surely, 2^51857627 is an apocalyptic number.

51857627 is a deficient number, since it is larger than the sum of its proper divisors (1).

51857627 is an equidigital number, since it uses as much as digits as its factorization.

51857627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117600, while the sum is 41.

The square root of 51857627 is about 7201.2239931834. The cubic root of 51857627 is about 372.9101576440.

The spelling of 51857627 in words is "fifty-one million, eight hundred fifty-seven thousand, six hundred twenty-seven".