47755766 has 4 divisors (see below), whose sum is σ = 71633652. Its totient is φ = 23877882.

The previous prime is 47755739. The next prime is 47755769. The reversal of 47755766 is 66755774.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66755774 = 2 ⋅33377887.

It is a super-2 number, since 2×47755766² = 4561226372493512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47755766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47755769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11938940 + ... + 11938943.

It is an arithmetic number, because the mean of its divisors is an integer number (17908413).

Almost surely, 2^47755766 is an apocalyptic number.

47755766 is a deficient number, since it is larger than the sum of its proper divisors (23877886).

47755766 is a wasteful number, since it uses less digits than its factorization.

47755766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23877885.

The product of its digits is 1234800, while the sum is 47.

The square root of 47755766 is about 6910.5546810658. The cubic root of 47755766 is about 362.8066776137.

The spelling of 47755766 in words is "forty-seven million, seven hundred fifty-five thousand, seven hundred sixty-six".