51466087 has 2 divisors, whose sum is σ = 51466088. Its totient is φ = 51466086.

The previous prime is 51466073. The next prime is 51466133. The reversal of 51466087 is 78066415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51466087 - 2²³ = 43077479 is a prime.

It is a super-2 number, since 2×51466087² = 5297516222183138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51466007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25733043 + 25733044.

It is an arithmetic number, because the mean of its divisors is an integer number (25733044).

Almost surely, 2^51466087 is an apocalyptic number.

51466087 is a deficient number, since it is larger than the sum of its proper divisors (1).

51466087 is an equidigital number, since it uses as much as digits as its factorization.

51466087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 51466087 is about 7173.9868274203. The cubic root of 51466087 is about 371.9692593205.

The spelling of 51466087 in words is "fifty-one million, four hundred sixty-six thousand, eighty-seven".