55645274 has 16 divisors (see below), whose sum is σ = 85529088. Its totient is φ = 27139632.

The previous prime is 55645273. The next prime is 55645297. The reversal of 55645274 is 47254655.

It is not an unprimeable number, because it can be changed into a prime (55645273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33692 + ... + 35304.

It is an arithmetic number, because the mean of its divisors is an integer number (5345568).

Almost surely, 2^55645274 is an apocalyptic number.

55645274 is a deficient number, since it is larger than the sum of its proper divisors (29883814).

55645274 is a wasteful number, since it uses less digits than its factorization.

55645274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029.

The product of its digits is 168000, while the sum is 38.

The square root of 55645274 is about 7459.5759933122. The cubic root of 55645274 is about 381.7767076747.

The spelling of 55645274 in words is "fifty-five million, six hundred forty-five thousand, two hundred seventy-four".