56121366 has 24 divisors (see below), whose sum is σ = 130568760. Its totient is φ = 16034592.

The previous prime is 56121361. The next prime is 56121379. The reversal of 56121366 is 66312165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56121361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95151 + ... + 95738.

It is an arithmetic number, because the mean of its divisors is an integer number (5440365).

Almost surely, 2^56121366 is an apocalyptic number.

56121366 is an abundant number, since it is smaller than the sum of its proper divisors (74447394).

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

56121366 is a wasteful number, since it uses less digits than its factorization.

56121366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190908 (or 190901 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 56121366 is about 7491.4194916584. The cubic root of 56121366 is about 382.8624238019.

The spelling of 56121366 in words is "fifty-six million, one hundred twenty-one thousand, three hundred sixty-six".