27480451 has 4 divisors (see below), whose sum is σ = 27492400. Its totient is φ = 27468504.

The previous prime is 27480443. The next prime is 27480457. The reversal of 27480451 is 15408472.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 27480451 - 2³ = 27480443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27480457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1311 + ... + 7528.

It is an arithmetic number, because the mean of its divisors is an integer number (6873100).

Almost surely, 2^27480451 is an apocalyptic number.

27480451 is a deficient number, since it is larger than the sum of its proper divisors (11949).

27480451 is an equidigital number, since it uses as much as digits as its factorization.

27480451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11948.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 27480451 is about 5242.1799854641. The cubic root of 27480451 is about 301.7689964833.

The spelling of 27480451 in words is "twenty-seven million, four hundred eighty thousand, four hundred fifty-one".