55612066 has 8 divisors (see below), whose sum is σ = 88325100. Its totient is φ = 26170368.

The previous prime is 55612033. The next prime is 55612097. The reversal of 55612066 is 66021655.

It can be written as a sum of positive squares in 2 ways, for example, as 55428025 + 184041 = 7445^2 + 429^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 817791 + ... + 817858.

Almost surely, 2^55612066 is an apocalyptic number.

55612066 is a deficient number, since it is larger than the sum of its proper divisors (32713034).

55612066 is a wasteful number, since it uses less digits than its factorization.

55612066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635668.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 55612066 is about 7457.3497973476. The cubic root of 55612066 is about 381.7007469637.

The spelling of 55612066 in words is "fifty-five million, six hundred twelve thousand, sixty-six".