56611278 has 16 divisors (see below), whose sum is σ = 125802960. Its totient is φ = 18870408.

The previous prime is 56611273. The next prime is 56611297. The reversal of 56611278 is 87211665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56611273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524125 + ... + 524232.

It is an arithmetic number, because the mean of its divisors is an integer number (7862685).

Almost surely, 2^56611278 is an apocalyptic number.

56611278 is an abundant number, since it is smaller than the sum of its proper divisors (69191682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56611278 is a wasteful number, since it uses less digits than its factorization.

56611278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048368 (or 1048362 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 56611278 is about 7524.0466505731. The cubic root of 56611278 is about 383.9732647402.

The spelling of 56611278 in words is "fifty-six million, six hundred eleven thousand, two hundred seventy-eight".