55047766 has 4 divisors (see below), whose sum is σ = 82571652. Its totient is φ = 27523882.

The previous prime is 55047743. The next prime is 55047781. The reversal of 55047766 is 66774055.

It is a happy number.

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

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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13761940 + ... + 13761943.

It is an arithmetic number, because the mean of its divisors is an integer number (20642913).

Almost surely, 2^55047766 is an apocalyptic number.

55047766 is a deficient number, since it is larger than the sum of its proper divisors (27523886).

55047766 is a wasteful number, since it uses less digits than its factorization.

55047766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27523885.

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

The square root of 55047766 is about 7419.4181712584. The cubic root of 55047766 is about 380.4053062374.

The spelling of 55047766 in words is "fifty-five million, forty-seven thousand, seven hundred sixty-six".