55680838 has 16 divisors (see below), whose sum is σ = 87400800. Its totient is φ = 26554176.

The previous prime is 55680817. The next prime is 55680839. The reversal of 55680838 is 83808655.

It is a junction number, because it is equal to n+sod(n) for n = 55680794 and 55680803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55680839) 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, 16738 + ... + 19786.

It is an arithmetic number, because the mean of its divisors is an integer number (5462550).

Almost surely, 2^55680838 is an apocalyptic number.

55680838 is a deficient number, since it is larger than the sum of its proper divisors (31719962).

55680838 is a wasteful number, since it uses less digits than its factorization.

55680838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3471.

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 55680838 is about 7461.9593941538. The cubic root of 55680838 is about 381.8580240462.

The spelling of 55680838 in words is "fifty-five million, six hundred eighty thousand, eight hundred thirty-eight".