56819838 has 16 divisors (see below), whose sum is σ = 117305856. Its totient is φ = 18328920.

The previous prime is 56819837. The next prime is 56819857. The reversal of 56819838 is 83891865.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56819837) 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, 152556 + ... + 152927.

It is an arithmetic number, because the mean of its divisors is an integer number (7331616).

Almost surely, 2^56819838 is an apocalyptic number.

56819838 is an abundant number, since it is smaller than the sum of its proper divisors (60486018).

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

56819838 is a wasteful number, since it uses less digits than its factorization.

56819838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305519.

The product of its digits is 414720, while the sum is 48.

The square root of 56819838 is about 7537.8934723171. The cubic root of 56819838 is about 384.4442152042. Note that the first 3 decimals are identical.

The spelling of 56819838 in words is "fifty-six million, eight hundred nineteen thousand, eight hundred thirty-eight".