27145554 has 16 divisors (see below), whose sum is σ = 54471648. Its totient is φ = 9018432.

The previous prime is 27145541. The next prime is 27145577. The reversal of 27145554 is 45554172.

It is a super-2 number, since 2×27145554² = 1473762203933832, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5527 + ... + 9210.

It is an arithmetic number, because the mean of its divisors is an integer number (3404478).

Almost surely, 2^27145554 is an apocalyptic number.

27145554 is an abundant number, since it is smaller than the sum of its proper divisors (27326094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27145554 is a wasteful number, since it uses less digits than its factorization.

27145554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15049.

The product of its digits is 28000, while the sum is 33.

The square root of 27145554 is about 5210.1395374788. The cubic root of 27145554 is about 300.5381230570.

The spelling of 27145554 in words is "twenty-seven million, one hundred forty-five thousand, five hundred fifty-four".