27420259 has 4 divisors (see below), whose sum is σ = 27458704. Its totient is φ = 27381816.

The previous prime is 27420229. The next prime is 27420299. The reversal of 27420259 is 95202472.

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

It is a cyclic number.

It is not a de Polignac number, because 27420259 - 2⁷ = 27420131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27420259.

It is not an unprimeable number, because it can be changed into a prime (27420229) 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, 18132 + ... + 19585.

It is an arithmetic number, because the mean of its divisors is an integer number (6864676).

Almost surely, 2^27420259 is an apocalyptic number.

27420259 is a deficient number, since it is larger than the sum of its proper divisors (38445).

27420259 is an equidigital number, since it uses as much as digits as its factorization.

27420259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38444.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 27420259 is about 5236.4357152552. The cubic root of 27420259 is about 301.5485081376.

The spelling of 27420259 in words is "twenty-seven million, four hundred twenty thousand, two hundred fifty-nine".