55556236 has 6 divisors (see below), whose sum is σ = 97223420. Its totient is φ = 27778116.

The previous prime is 55556231. The next prime is 55556251. The reversal of 55556236 is 63265555.

It is a junction number, because it is equal to n+sod(n) for n = 55556195 and 55556204.

It is not an unprimeable number, because it can be changed into a prime (55556231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6944526 + ... + 6944533.

Almost surely, 2^55556236 is an apocalyptic number.

It is an amenable number.

55556236 is a deficient number, since it is larger than the sum of its proper divisors (41667184).

55556236 is a wasteful number, since it uses less digits than its factorization.

55556236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13889063 (or 13889061 counting only the distinct ones).

The product of its digits is 135000, while the sum is 37.

The square root of 55556236 is about 7453.6055704605. The cubic root of 55556236 is about 381.5729720070.

The spelling of 55556236 in words is "fifty-five million, five hundred fifty-six thousand, two hundred thirty-six".