56121016 has 32 divisors (see below), whose sum is σ = 120528000. Its totient is φ = 23998176.

The previous prime is 56121007. The next prime is 56121017. The reversal of 56121016 is 61012165.

56121016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56121017) 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 7 ways as a sum of consecutive naturals, for example, 33855 + ... + 35473.

It is an arithmetic number, because the mean of its divisors is an integer number (3766500).

Almost surely, 2^56121016 is an apocalyptic number.

56121016 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

56121016 is an abundant number, since it is smaller than the sum of its proper divisors (64406984).

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

56121016 is a wasteful number, since it uses less digits than its factorization.

56121016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251 (or 2247 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 56121016 is about 7491.3961315632. The cubic root of 56121016 is about 382.8616278951.

The spelling of 56121016 in words is "fifty-six million, one hundred twenty-one thousand, sixteen".