51466031 has 2 divisors, whose sum is σ = 51466032. Its totient is φ = 51466030.

The previous prime is 51466007. The next prime is 51466033. The reversal of 51466031 is 13066415.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51466031 is a prime.

It is a super-2 number, since 2×51466031² = 5297504693785922, which contains 22 as substring.

Together with 51466033, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51466033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25733015 + 25733016.

It is an arithmetic number, because the mean of its divisors is an integer number (25733016).

Almost surely, 2^51466031 is an apocalyptic number.

51466031 is a deficient number, since it is larger than the sum of its proper divisors (1).

51466031 is an equidigital number, since it uses as much as digits as its factorization.

51466031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 51466031 is about 7173.9829244291. The cubic root of 51466031 is about 371.9691244078.

The spelling of 51466031 in words is "fifty-one million, four hundred sixty-six thousand, thirty-one".