16255493 has 2 divisors, whose sum is σ = 16255494. Its totient is φ = 16255492.

The previous prime is 16255487. The next prime is 16255523. The reversal of 16255493 is 39455261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15038884 + 1216609 = 3878^2 + 1103^2 .

It is an emirp because it is prime and its reverse (39455261) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16255493 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 (16255403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8127746 + 8127747.

It is an arithmetic number, because the mean of its divisors is an integer number (8127747).

Almost surely, 2^16255493 is an apocalyptic number.

It is an amenable number.

16255493 is a deficient number, since it is larger than the sum of its proper divisors (1).

16255493 is an equidigital number, since it uses as much as digits as its factorization.

16255493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 35.

The square root of 16255493 is about 4031.8101393791. The cubic root of 16255493 is about 253.3183876609.

It can be divided in two parts, 162 and 55493, that added together give a palindrome (55655).

The spelling of 16255493 in words is "sixteen million, two hundred fifty-five thousand, four hundred ninety-three".