27305061 has 16 divisors (see below), whose sum is σ = 41829504. Its totient is φ = 15519744.

The previous prime is 27305053. The next prime is 27305063. The reversal of 27305061 is 16050372.

27305061 = 49² + 50² + ... + 434².

It is not a de Polignac number, because 27305061 - 2³ = 27305053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27305063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685 + ... + 7421.

It is an arithmetic number, because the mean of its divisors is an integer number (2614344).

Almost surely, 2^27305061 is an apocalyptic number.

27305061 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

27305061 is a deficient number, since it is larger than the sum of its proper divisors (14524443).

27305061 is a wasteful number, since it uses less digits than its factorization.

27305061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6940.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 27305061 is about 5225.4244803652. The cubic root of 27305061 is about 301.1256268208.

The spelling of 27305061 in words is "twenty-seven million, three hundred five thousand, sixty-one".