51468643 has 2 divisors, whose sum is σ = 51468644. Its totient is φ = 51468642.

The previous prime is 51468631. The next prime is 51468647. The reversal of 51468643 is 34686415.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51468643 is a prime.

It is a super-2 number, since 2×51468643² = 5298042424522898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51468647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25734321 + 25734322.

It is an arithmetic number, because the mean of its divisors is an integer number (25734322).

Almost surely, 2^51468643 is an apocalyptic number.

51468643 is a deficient number, since it is larger than the sum of its proper divisors (1).

51468643 is an equidigital number, since it uses as much as digits as its factorization.

51468643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 37.

The square root of 51468643 is about 7174.1649688309. The cubic root of 51468643 is about 371.9754170174.

The spelling of 51468643 in words is "fifty-one million, four hundred sixty-eight thousand, six hundred forty-three".