10056391 has 2 divisors, whose sum is σ = 10056392. Its totient is φ = 10056390.

The previous prime is 10056383. The next prime is 10056421. The reversal of 10056391 is 19365001.

It is a weak prime.

It is an emirp because it is prime and its reverse (19365001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10056391 - 2³ = 10056383 is a prime.

It is a super-2 number, since 2×10056391² = 202261999889762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10056311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5028195 + 5028196.

It is an arithmetic number, because the mean of its divisors is an integer number (5028196).

Almost surely, 2^10056391 is an apocalyptic number.

10056391 is a deficient number, since it is larger than the sum of its proper divisors (1).

10056391 is an equidigital number, since it uses as much as digits as its factorization.

10056391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 10056391 is about 3171.1813256261. The cubic root of 10056391 is about 215.8476792473.

It can be divided in two parts, 1005 and 6391, that added together give a square (7396 = 86²).

The spelling of 10056391 in words is "ten million, fifty-six thousand, three hundred ninety-one".