55643126 has 48 divisors (see below), whose sum is σ = 107557632. Its totient is φ = 21344400.

The previous prime is 55643113. The next prime is 55643129. The reversal of 55643126 is 62134655.

It is a junction number, because it is equal to n+sod(n) for n = 55643092 and 55643101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55643129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76175 + ... + 76901.

It is an arithmetic number, because the mean of its divisors is an integer number (2240784).

Almost surely, 2^55643126 is an apocalyptic number.

55643126 is a deficient number, since it is larger than the sum of its proper divisors (51914506).

55643126 is a wasteful number, since it uses less digits than its factorization.

55643126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825 (or 818 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 55643126 is about 7459.4320159111. The cubic root of 55643126 is about 381.7717952065.

The spelling of 55643126 in words is "fifty-five million, six hundred forty-three thousand, one hundred twenty-six".