56889019 has 4 divisors (see below), whose sum is σ = 62060760. Its totient is φ = 51717280.

The previous prime is 56889013. The next prime is 56889023. The reversal of 56889019 is 91098865.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56889019 - 2⁷ = 56888891 is a prime.

It is a super-2 number, since 2×56889019² = 6472720965564722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56889019.

It is not an unprimeable number, because it can be changed into a prime (56889013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2585854 + ... + 2585875.

It is an arithmetic number, because the mean of its divisors is an integer number (15515190).

Almost surely, 2^56889019 is an apocalyptic number.

56889019 is a deficient number, since it is larger than the sum of its proper divisors (5171741).

56889019 is a wasteful number, since it uses less digits than its factorization.

56889019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5171740.

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 56889019 is about 7542.4809578812. The cubic root of 56889019 is about 384.6001786224.

The spelling of 56889019 in words is "fifty-six million, eight hundred eighty-nine thousand, nineteen".