27542045 has 6 divisors (see below), whose sum is σ = 33064542. Its totient is φ = 22024248.

The previous prime is 27541991. The next prime is 27542071. The reversal of 27542045 is 54024572.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22033636 + 5508409 = 4694^2 + 2347^2 .

It is not a de Polignac number, because 27542045 - 2¹² = 27537949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27541999 and 27542017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10562 + ... + 12908.

It is an arithmetic number, because the mean of its divisors is an integer number (5510757).

Almost surely, 2^27542045 is an apocalyptic number.

It is an amenable number.

27542045 is a deficient number, since it is larger than the sum of its proper divisors (5522497).

27542045 is an frugal number, since it uses more digits than its factorization.

27542045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4699 (or 2352 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 27542045 is about 5248.0515431920. The cubic root of 27542045 is about 301.9942874232.

The spelling of 27542045 in words is "twenty-seven million, five hundred forty-two thousand, forty-five".