55566058 has 4 divisors (see below), whose sum is σ = 83349090. Its totient is φ = 27783028.

The previous prime is 55566053. The next prime is 55566061. The reversal of 55566058 is 85066555.

It is a happy number.

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., 53831569 + 1734489 = 7337^2 + 1317^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 55566058.

It is not an unprimeable number, because it can be changed into a prime (55566053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13891513 + ... + 13891516.

Almost surely, 2^55566058 is an apocalyptic number.

55566058 is a deficient number, since it is larger than the sum of its proper divisors (27783032).

55566058 is a wasteful number, since it uses less digits than its factorization.

55566058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27783031.

The product of its (nonzero) digits is 180000, while the sum is 40.

The square root of 55566058 is about 7454.2644170971. The cubic root of 55566058 is about 381.5954572649.

The spelling of 55566058 in words is "fifty-five million, five hundred sixty-six thousand, fifty-eight".