51436867 has 2 divisors, whose sum is σ = 51436868. Its totient is φ = 51436866.

The previous prime is 51436841. The next prime is 51436907. The reversal of 51436867 is 76863415.

It is a happy number.

It is an a-pointer prime, because the next prime (51436907) can be obtained adding 51436867 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51436867 - 2⁷ = 51436739 is a prime.

It is not a weakly prime, because it can be changed into another prime (51439867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25718433 + 25718434.

It is an arithmetic number, because the mean of its divisors is an integer number (25718434).

Almost surely, 2^51436867 is an apocalyptic number.

51436867 is a deficient number, since it is larger than the sum of its proper divisors (1).

51436867 is an equidigital number, since it uses as much as digits as its factorization.

51436867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The square root of 51436867 is about 7171.9500137689. The cubic root of 51436867 is about 371.8988505005.

The spelling of 51436867 in words is "fifty-one million, four hundred thirty-six thousand, eight hundred sixty-seven".