53566774 has 4 divisors (see below), whose sum is σ = 80350164. Its totient is φ = 26783386.

The previous prime is 53566771. The next prime is 53566811. The reversal of 53566774 is 47766535.

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

It is a self number, because there is not a number n which added to its sum of digits gives 53566774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53566771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13391692 + ... + 13391695.

It is an arithmetic number, because the mean of its divisors is an integer number (20087541).

Almost surely, 2^53566774 is an apocalyptic number.

53566774 is a deficient number, since it is larger than the sum of its proper divisors (26783390).

53566774 is a wasteful number, since it uses less digits than its factorization.

53566774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26783389.

The product of its digits is 529200, while the sum is 43.

The square root of 53566774 is about 7318.9325724452. The cubic root of 53566774 is about 376.9628024192.

The spelling of 53566774 in words is "fifty-three million, five hundred sixty-six thousand, seven hundred seventy-four".