27505245 has 16 divisors (see below), whose sum is σ = 45198720. Its totient is φ = 14272704.

The previous prime is 27505241. The next prime is 27505249. The reversal of 27505245 is 54250572.

It is an interprime number because it is at equal distance from previous prime (27505241) and next prime (27505249).

It is not a de Polignac number, because 27505245 - 2² = 27505241 is a prime.

It is a super-4 number, since 4×27505245⁴ (a number of 31 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27505241) 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, 24225 + ... + 25334.

It is an arithmetic number, because the mean of its divisors is an integer number (2824920).

Almost surely, 2^27505245 is an apocalyptic number.

It is an amenable number.

27505245 is a deficient number, since it is larger than the sum of its proper divisors (17693475).

27505245 is a wasteful number, since it uses less digits than its factorization.

27505245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49604.

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 27505245 is about 5244.5443081358. The cubic root of 27505245 is about 301.8597253608.

The spelling of 27505245 in words is "twenty-seven million, five hundred five thousand, two hundred forty-five".