55575996 has 72 divisors (see below), whose sum is σ = 154135296. Its totient is φ = 15533280.

The previous prime is 55575979. The next prime is 55575997. The reversal of 55575996 is 69957555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55575997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26631 + ... + 28641.

It is an arithmetic number, because the mean of its divisors is an integer number (2140768).

Almost surely, 2^55575996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55575996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77067648).

55575996 is an abundant number, since it is smaller than the sum of its proper divisors (98559300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55575996 is a wasteful number, since it uses less digits than its factorization.

55575996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079 (or 2070 counting only the distinct ones).

The product of its digits is 2126250, while the sum is 51.

The square root of 55575996 is about 7454.9309855960. The cubic root of 55575996 is about 381.6182053821.

The spelling of 55575996 in words is "fifty-five million, five hundred seventy-five thousand, nine hundred ninety-six".