56732989 has 8 divisors (see below), whose sum is σ = 58086560. Its totient is φ = 55393200.

The previous prime is 56732983. The next prime is 56732999. The reversal of 56732989 is 98923765.

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

It is a cyclic number.

It is not a de Polignac number, because 56732989 - 2¹⁷ = 56601917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56732983) 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, 5134 + ... + 11824.

It is an arithmetic number, because the mean of its divisors is an integer number (7260820).

Almost surely, 2^56732989 is an apocalyptic number.

It is an amenable number.

56732989 is a deficient number, since it is larger than the sum of its proper divisors (1353571).

56732989 is a wasteful number, since it uses less digits than its factorization.

56732989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6891.

The product of its digits is 816480, while the sum is 49.

The square root of 56732989 is about 7532.1304423118. The cubic root of 56732989 is about 384.2482412701.

The spelling of 56732989 in words is "fifty-six million, seven hundred thirty-two thousand, nine hundred eighty-nine".