27754513 has 4 divisors (see below), whose sum is σ = 28040740. Its totient is φ = 27468288.

The previous prime is 27754481. The next prime is 27754543. The reversal of 27754513 is 31545772.

27754513 is nontrivially palindromic in base 14.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9290304 + 18464209 = 3048^2 + 4297^2 .

It is a cyclic number.

It is not a de Polignac number, because 27754513 - 2⁵ = 27754481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27754543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142968 + ... + 143161.

It is an arithmetic number, because the mean of its divisors is an integer number (7010185).

Almost surely, 2^27754513 is an apocalyptic number.

It is an amenable number.

27754513 is a deficient number, since it is larger than the sum of its proper divisors (286227).

27754513 is an equidigital number, since it uses as much as digits as its factorization.

27754513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286226.

The product of its digits is 29400, while the sum is 34.

The square root of 27754513 is about 5268.2552140154. The cubic root of 27754513 is about 302.7688587097.

The spelling of 27754513 in words is "twenty-seven million, seven hundred fifty-four thousand, five hundred thirteen".