51345893 has 2 divisors, whose sum is σ = 51345894. Its totient is φ = 51345892.

The previous prime is 51345859. The next prime is 51345907. The reversal of 51345893 is 39854315.

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., 40170244 + 11175649 = 6338^2 + 3343^2 .

It is a cyclic number.

It is not a de Polignac number, because 51345893 - 2¹⁰ = 51344869 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51345803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25672946 + 25672947.

It is an arithmetic number, because the mean of its divisors is an integer number (25672947).

Almost surely, 2^51345893 is an apocalyptic number.

It is an amenable number.

51345893 is a deficient number, since it is larger than the sum of its proper divisors (1).

51345893 is an equidigital number, since it uses as much as digits as its factorization.

51345893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 38.

The square root of 51345893 is about 7165.6048593263. The cubic root of 51345893 is about 371.6794676986.

The spelling of 51345893 in words is "fifty-one million, three hundred forty-five thousand, eight hundred ninety-three".