56889240 has 32 divisors (see below), whose sum is σ = 170668080. Its totient is φ = 15170432.

The previous prime is 56889229. The next prime is 56889241. The reversal of 56889240 is 4298865.

It is a junction number, because it is equal to n+sod(n) for n = 56889192 and 56889201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56889241) 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, 236919 + ... + 237158.

Almost surely, 2^56889240 is an apocalyptic number.

It is an amenable number.

56889240 is an abundant number, since it is smaller than the sum of its proper divisors (113778840).

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

56889240 is a wasteful number, since it uses less digits than its factorization.

56889240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474091 (or 474087 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 56889240 is about 7542.4956082188. The cubic root of 56889240 is about 384.6006766478.

The spelling of 56889240 in words is "fifty-six million, eight hundred eighty-nine thousand, two hundred forty".