55609876 has 12 divisors (see below), whose sum is σ = 111219808. Its totient is φ = 23832792.

The previous prime is 55609859. The next prime is 55609889. The reversal of 55609876 is 67890655.

55609876 is an admirable number.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 993006 + ... + 993061.

Almost surely, 2^55609876 is an apocalyptic number.

It is an amenable number.

55609876 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55609876 is a wasteful number, since it uses less digits than its factorization.

55609876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986078 (or 1986076 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 46.

The square root of 55609876 is about 7457.2029608963. The cubic root of 55609876 is about 381.6957364466.

The spelling of 55609876 in words is "fifty-five million, six hundred nine thousand, eight hundred seventy-six".