55711828 has 12 divisors (see below), whose sum is σ = 97614720. Its totient is φ = 27821912.

The previous prime is 55711823. The next prime is 55711847. The reversal of 55711828 is 82811755.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55711823) 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, 4618 + ... + 11521.

It is an arithmetic number, because the mean of its divisors is an integer number (8134560).

Almost surely, 2^55711828 is an apocalyptic number.

It is an amenable number.

55711828 is a deficient number, since it is larger than the sum of its proper divisors (41902892).

55711828 is a wasteful number, since it uses less digits than its factorization.

55711828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17006 (or 17004 counting only the distinct ones).

The product of its digits is 22400, while the sum is 37.

The square root of 55711828 is about 7464.0356376427. The cubic root of 55711828 is about 381.9288538316.

The spelling of 55711828 in words is "fifty-five million, seven hundred eleven thousand, eight hundred twenty-eight".