56661334 has 4 divisors (see below), whose sum is σ = 84992004. Its totient is φ = 28330666.

The previous prime is 56661317. The next prime is 56661343. The reversal of 56661334 is 43316665.

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 56661334.

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, 14165332 + ... + 14165335.

It is an arithmetic number, because the mean of its divisors is an integer number (21248001).

Almost surely, 2^56661334 is an apocalyptic number.

56661334 is a deficient number, since it is larger than the sum of its proper divisors (28330670).

56661334 is a wasteful number, since it uses less digits than its factorization.

56661334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28330669.

The product of its digits is 38880, while the sum is 34.

The square root of 56661334 is about 7527.3723170838. The cubic root of 56661334 is about 384.0864018179.

Adding to 56661334 its reverse (43316665), we get a palindrome (99977999).

The spelling of 56661334 in words is "fifty-six million, six hundred sixty-one thousand, three hundred thirty-four".