27405057 has 8 divisors (see below), whose sum is σ = 36581184. Its totient is φ = 18249488.

The previous prime is 27405047. The next prime is 27405073. The reversal of 27405057 is 75050472.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27405057 - 2⁴ = 27405041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27405047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1698 + ... + 7595.

It is an arithmetic number, because the mean of its divisors is an integer number (4572648).

Almost surely, 2^27405057 is an apocalyptic number.

It is an amenable number.

27405057 is a deficient number, since it is larger than the sum of its proper divisors (9176127).

27405057 is an equidigital number, since it uses as much as digits as its factorization.

27405057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10279.

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 27405057 is about 5234.9839541301. The cubic root of 27405057 is about 301.4927709077.

The spelling of 27405057 in words is "twenty-seven million, four hundred five thousand, fifty-seven".