56878898 has 4 divisors (see below), whose sum is σ = 85318350. Its totient is φ = 28439448.

The previous prime is 56878897. The next prime is 56878907. The reversal of 56878898 is 89887865.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89887865 = 5 ⋅17977573.

It can be written as a sum of positive squares in only one way, i.e., 47100769 + 9778129 = 6863^2 + 3127^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56878897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14219723 + ... + 14219726.

Almost surely, 2^56878898 is an apocalyptic number.

56878898 is a deficient number, since it is larger than the sum of its proper divisors (28439452).

56878898 is a wasteful number, since it uses less digits than its factorization.

56878898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28439451.

The product of its digits is 7741440, while the sum is 59.

The square root of 56878898 is about 7541.8099949548. The cubic root of 56878898 is about 384.5773694797.

The spelling of 56878898 in words is "fifty-six million, eight hundred seventy-eight thousand, eight hundred ninety-eight".