55945546 has 4 divisors (see below), whose sum is σ = 83918322. Its totient is φ = 27972772.

The previous prime is 55945543. The next prime is 55945567. The reversal of 55945546 is 64554955.

55945546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 35343025 + 20602521 = 5945^2 + 4539^2 .

It is not an unprimeable number, because it can be changed into a prime (55945541) by changing a digit.

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 as a sum of consecutive naturals, namely, 13986385 + ... + 13986388.

Almost surely, 2^55945546 is an apocalyptic number.

55945546 is a deficient number, since it is larger than the sum of its proper divisors (27972776).

55945546 is a wasteful number, since it uses less digits than its factorization.

55945546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27972775.

The product of its digits is 540000, while the sum is 43.

The square root of 55945546 is about 7479.6755277218. The cubic root of 55945546 is about 382.4621882967.

The spelling of 55945546 in words is "fifty-five million, nine hundred forty-five thousand, five hundred forty-six".