56349893 has 2 divisors, whose sum is σ = 56349894. Its totient is φ = 56349892.

The previous prime is 56349857. The next prime is 56349899. The reversal of 56349893 is 39894365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55606849 + 743044 = 7457^2 + 862^2 .

It is a cyclic number.

It is not a de Polignac number, because 56349893 - 2⁶ = 56349829 is a prime.

It is a super-2 number, since 2×56349893² = 6350620882222898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56349899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28174946 + 28174947.

It is an arithmetic number, because the mean of its divisors is an integer number (28174947).

Almost surely, 2^56349893 is an apocalyptic number.

It is an amenable number.

56349893 is a deficient number, since it is larger than the sum of its proper divisors (1).

56349893 is an equidigital number, since it uses as much as digits as its factorization.

56349893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 47.

The square root of 56349893 is about 7506.6565793301. The cubic root of 56349893 is about 383.3813937641.

The spelling of 56349893 in words is "fifty-six million, three hundred forty-nine thousand, eight hundred ninety-three".