56069988 has 48 divisors (see below), whose sum is σ = 148317120. Its totient is φ = 16343424.

The previous prime is 56069987. The next prime is 56069989. The reversal of 56069988 is 88996065.

It is an interprime number because it is at equal distance from previous prime (56069987) and next prime (56069989).

It is a self number, because there is not a number n which added to its sum of digits gives 56069988.

It is not an unprimeable number, because it can be changed into a prime (56069983) 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, 6495 + ... + 12422.

It is an arithmetic number, because the mean of its divisors is an integer number (3089940).

Almost surely, 2^56069988 is an apocalyptic number.

It is an amenable number.

56069988 is an abundant number, since it is smaller than the sum of its proper divisors (92247132).

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

56069988 is a wasteful number, since it uses less digits than its factorization.

56069988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18956 (or 18954 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 51.

The square root of 56069988 is about 7487.9895833261. The cubic root of 56069988 is about 382.7455538064.

The spelling of 56069988 in words is "fifty-six million, sixty-nine thousand, nine hundred eighty-eight".