51626867 has 2 divisors, whose sum is σ = 51626868. Its totient is φ = 51626866.

The previous prime is 51626863. The next prime is 51626879. The reversal of 51626867 is 76862615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51626867 - 2² = 51626863 is a prime.

It is not a weakly prime, because it can be changed into another prime (51626863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25813433 + 25813434.

It is an arithmetic number, because the mean of its divisors is an integer number (25813434).

Almost surely, 2^51626867 is an apocalyptic number.

51626867 is a deficient number, since it is larger than the sum of its proper divisors (1).

51626867 is an equidigital number, since it uses as much as digits as its factorization.

51626867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 51626867 is about 7185.1838529017. The cubic root of 51626867 is about 372.3562005195.

The spelling of 51626867 in words is "fifty-one million, six hundred twenty-six thousand, eight hundred sixty-seven".