55647706 has 4 divisors (see below), whose sum is σ = 83471562. Its totient is φ = 27823852.

The previous prime is 55647653. The next prime is 55647727. The reversal of 55647706 is 60774655.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60774655 = 5 ⋅12154931.

It can be written as a sum of positive squares in only one way, i.e., 55636681 + 11025 = 7459^2 + 105^2 .

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 an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13911925 + ... + 13911928.

Almost surely, 2^55647706 is an apocalyptic number.

55647706 is a deficient number, since it is larger than the sum of its proper divisors (27823856).

55647706 is a wasteful number, since it uses less digits than its factorization.

55647706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27823855.

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 55647706 is about 7459.7390034773. The cubic root of 55647706 is about 381.7822694973.

The spelling of 55647706 in words is "fifty-five million, six hundred forty-seven thousand, seven hundred six".