55027661 has 8 divisors (see below), whose sum is σ = 61837440. Its totient is φ = 48586032.

The previous prime is 55027649. The next prime is 55027663. The reversal of 55027661 is 16672055.

It is a happy number.

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 55027661 - 2¹⁴ = 55011277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55027663) 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, 91721 + ... + 92318.

It is an arithmetic number, because the mean of its divisors is an integer number (7729680).

Almost surely, 2^55027661 is an apocalyptic number.

It is an amenable number.

55027661 is a deficient number, since it is larger than the sum of its proper divisors (6809779).

55027661 is a wasteful number, since it uses less digits than its factorization.

55027661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184075.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 55027661 is about 7418.0631569164. The cubic root of 55027661 is about 380.3589890083.

The spelling of 55027661 in words is "fifty-five million, twenty-seven thousand, six hundred sixty-one".