56121942 has 8 divisors (see below), whose sum is σ = 112243896. Its totient is φ = 18707312.

The previous prime is 56121937. The next prime is 56121943. The reversal of 56121942 is 24912165.

56121942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

56121942 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56121943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4676823 + ... + 4676834.

It is an arithmetic number, because the mean of its divisors is an integer number (14030487).

Almost surely, 2^56121942 is an apocalyptic number.

56121942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

56121942 is a wasteful number, since it uses less digits than its factorization.

56121942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9353662.

The product of its digits is 4320, while the sum is 30.

The square root of 56121942 is about 7491.4579355423. The cubic root of 56121942 is about 382.8637336299.

The spelling of 56121942 in words is "fifty-six million, one hundred twenty-one thousand, nine hundred forty-two".