56626428 has 48 divisors (see below), whose sum is σ = 137319840. Its totient is φ = 18146304.

The previous prime is 56626421. The next prime is 56626463. The reversal of 56626428 is 82462665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56626421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38800 + ... + 40232.

It is an arithmetic number, because the mean of its divisors is an integer number (2860830).

Almost surely, 2^56626428 is an apocalyptic number.

It is an amenable number.

56626428 is an abundant number, since it is smaller than the sum of its proper divisors (80693412).

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

56626428 is a wasteful number, since it uses less digits than its factorization.

56626428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566 (or 1564 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 56626428 is about 7525.0533552926. The cubic root of 56626428 is about 384.0075139589.

It can be divided in two parts, 5662 and 6428, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 56626428 in words is "fifty-six million, six hundred twenty-six thousand, four hundred twenty-eight".