56628742 has 16 divisors (see below), whose sum is σ = 86955120. Its totient is φ = 27651712.

The previous prime is 56628727. The next prime is 56628743. The reversal of 56628742 is 24782665.

It is a junction number, because it is equal to n+sod(n) for n = 56628695 and 56628704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56628743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12858 + ... + 16690.

It is an arithmetic number, because the mean of its divisors is an integer number (5434695).

Almost surely, 2^56628742 is an apocalyptic number.

56628742 is a deficient number, since it is larger than the sum of its proper divisors (30326378).

56628742 is a wasteful number, since it uses less digits than its factorization.

56628742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4007.

The product of its digits is 161280, while the sum is 40.

The square root of 56628742 is about 7525.2071067845. The cubic root of 56628742 is about 384.0127446219.

The spelling of 56628742 in words is "fifty-six million, six hundred twenty-eight thousand, seven hundred forty-two".