56431028 has 6 divisors (see below), whose sum is σ = 98754306. Its totient is φ = 28215512.

The previous prime is 56431009. The next prime is 56431057. The reversal of 56431028 is 82013465.

56431028 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 only one way, i.e., 54937744 + 1493284 = 7412^2 + 1222^2 .

It is a super-2 number, since 2×56431028² = 6368921842273568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7053875 + ... + 7053882.

It is an arithmetic number, because the mean of its divisors is an integer number (16459051).

Almost surely, 2^56431028 is an apocalyptic number.

It is an amenable number.

56431028 is a deficient number, since it is larger than the sum of its proper divisors (42323278).

56431028 is a wasteful number, since it uses less digits than its factorization.

56431028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14107761 (or 14107759 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 56431028 is about 7512.0588389602. The cubic root of 56431028 is about 383.5653085306.

The spelling of 56431028 in words is "fifty-six million, four hundred thirty-one thousand, twenty-eight".