56748121 has 8 divisors (see below), whose sum is σ = 58659080. Its totient is φ = 54857088.

The previous prime is 56748119. The next prime is 56748137. The reversal of 56748121 is 12184765.

56748121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10017225 + 46730896 = 3165^2 + 6836^2 .

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

It is not a de Polignac number, because 56748121 - 2¹ = 56748119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56748151) 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, 925 + ... + 10693.

It is an arithmetic number, because the mean of its divisors is an integer number (7332385).

Almost surely, 2^56748121 is an apocalyptic number.

It is an amenable number.

56748121 is a deficient number, since it is larger than the sum of its proper divisors (1910959).

56748121 is a wasteful number, since it uses less digits than its factorization.

56748121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9963.

The product of its digits is 13440, while the sum is 34.

The square root of 56748121 is about 7533.1348720171. The cubic root of 56748121 is about 384.2824008635.

The spelling of 56748121 in words is "fifty-six million, seven hundred forty-eight thousand, one hundred twenty-one".