55042766 has 4 divisors (see below), whose sum is σ = 82564152. Its totient is φ = 27521382.

The previous prime is 55042759. The next prime is 55042777. The reversal of 55042766 is 66724055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66724055 = 5 ⋅13344811.

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, 13760690 + ... + 13760693.

It is an arithmetic number, because the mean of its divisors is an integer number (20641038).

Almost surely, 2^55042766 is an apocalyptic number.

55042766 is a deficient number, since it is larger than the sum of its proper divisors (27521386).

55042766 is a wasteful number, since it uses less digits than its factorization.

55042766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27521385.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 55042766 is about 7419.0812099612. The cubic root of 55042766 is about 380.3937884577.

The spelling of 55042766 in words is "fifty-five million, forty-two thousand, seven hundred sixty-six".