51468629 has 2 divisors, whose sum is σ = 51468630. Its totient is φ = 51468628.

The previous prime is 51468589. The next prime is 51468631. The reversal of 51468629 is 92686415.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50438404 + 1030225 = 7102^2 + 1015^2 .

It is a cyclic number.

It is not a de Polignac number, because 51468629 - 2¹² = 51464533 is a prime.

It is a super-2 number, since 2×51468629² = 5298039542279282, which contains 22 as substring.

Together with 51468631, 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 (51468679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25734314 + 25734315.

It is an arithmetic number, because the mean of its divisors is an integer number (25734315).

Almost surely, 2^51468629 is an apocalyptic number.

It is an amenable number.

51468629 is a deficient number, since it is larger than the sum of its proper divisors (1).

51468629 is an equidigital number, since it uses as much as digits as its factorization.

51468629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 41.

The square root of 51468629 is about 7174.1639931075. The cubic root of 51468629 is about 371.9753832903.

The spelling of 51468629 in words is "fifty-one million, four hundred sixty-eight thousand, six hundred twenty-nine".