55027747 has 4 divisors (see below), whose sum is σ = 55051960. Its totient is φ = 55003536.

The previous prime is 55027733. The next prime is 55027789. The reversal of 55027747 is 74772055.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55027747 - 2¹⁹ = 54503459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55027717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8298 + ... + 13375.

It is an arithmetic number, because the mean of its divisors is an integer number (13762990).

Almost surely, 2^55027747 is an apocalyptic number.

55027747 is a deficient number, since it is larger than the sum of its proper divisors (24213).

55027747 is a wasteful number, since it uses less digits than its factorization.

55027747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24212.

The product of its (nonzero) digits is 68600, while the sum is 37.

The square root of 55027747 is about 7418.0689535755. The cubic root of 55027747 is about 380.3591871563.

The spelling of 55027747 in words is "fifty-five million, twenty-seven thousand, seven hundred forty-seven".