51468013 has 2 divisors, whose sum is σ = 51468014. Its totient is φ = 51468012.

The previous prime is 51468007. The next prime is 51468031. The reversal of 51468013 is 31086415.

Together with next prime (51468031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36699364 + 14768649 = 6058^2 + 3843^2 .

It is a cyclic number.

It is not a de Polignac number, because 51468013 - 2²¹ = 49370861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51468083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25734006 + 25734007.

It is an arithmetic number, because the mean of its divisors is an integer number (25734007).

Almost surely, 2^51468013 is an apocalyptic number.

It is an amenable number.

51468013 is a deficient number, since it is larger than the sum of its proper divisors (1).

51468013 is an equidigital number, since it uses as much as digits as its factorization.

51468013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 51468013 is about 7174.1210611475. The cubic root of 51468013 is about 371.9738992941.

The spelling of 51468013 in words is "fifty-one million, four hundred sixty-eight thousand, thirteen".