55991834 has 8 divisors (see below), whose sum is σ = 84410400. Its totient is φ = 27855036.

The previous prime is 55991827. The next prime is 55991843. The reversal of 55991834 is 43819955.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69944 + ... + 70739.

It is an arithmetic number, because the mean of its divisors is an integer number (10551300).

Almost surely, 2^55991834 is an apocalyptic number.

55991834 is a deficient number, since it is larger than the sum of its proper divisors (28418566).

55991834 is a wasteful number, since it uses less digits than its factorization.

55991834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140884.

The product of its digits is 194400, while the sum is 44.

The square root of 55991834 is about 7482.7691398305. The cubic root of 55991834 is about 382.5676392266.

The spelling of 55991834 in words is "fifty-five million, nine hundred ninety-one thousand, eight hundred thirty-four".