55576642 has 8 divisors (see below), whose sum is σ = 90943632. Its totient is φ = 25262100.

The previous prime is 55576639. The next prime is 55576649. The reversal of 55576642 is 24667555.

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

It is a junction number, because it is equal to n+sod(n) for n = 55576595 and 55576604.

It is not an unprimeable number, because it can be changed into a prime (55576649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1263084 + ... + 1263127.

It is an arithmetic number, because the mean of its divisors is an integer number (11367954).

Almost surely, 2^55576642 is an apocalyptic number.

55576642 is a deficient number, since it is larger than the sum of its proper divisors (35366990).

55576642 is a wasteful number, since it uses less digits than its factorization.

55576642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526224.

The product of its digits is 252000, while the sum is 40.

The square root of 55576642 is about 7454.9743124977. The cubic root of 55576642 is about 381.6196839845.

The spelling of 55576642 in words is "fifty-five million, five hundred seventy-six thousand, six hundred forty-two".