56545898 has 4 divisors (see below), whose sum is σ = 84818850. Its totient is φ = 28272948.

The previous prime is 56545897. The next prime is 56545913. The reversal of 56545898 is 89854565.

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

It can be written as a sum of positive squares in only one way, i.e., 42159049 + 14386849 = 6493^2 + 3793^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (56545897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14136473 + ... + 14136476.

Almost surely, 2^56545898 is an apocalyptic number.

56545898 is a deficient number, since it is larger than the sum of its proper divisors (28272952).

56545898 is a wasteful number, since it uses less digits than its factorization.

56545898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28272951.

The product of its digits is 1728000, while the sum is 50.

The square root of 56545898 is about 7519.7006589358. The cubic root of 56545898 is about 383.8253917170.

The spelling of 56545898 in words is "fifty-six million, five hundred forty-five thousand, eight hundred ninety-eight".