55576656 has 60 divisors (see below), whose sum is σ = 157034592. Its totient is φ = 18347328.

The previous prime is 55576649. The next prime is 55576657. The reversal of 55576656 is 65667555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55576657) 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 11 ways as a sum of consecutive naturals, for example, 13605 + ... + 17211.

Almost surely, 2^55576656 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 55576656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78517296).

55576656 is an abundant number, since it is smaller than the sum of its proper divisors (101457936).

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

55576656 is a wasteful number, since it uses less digits than its factorization.

55576656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3728 (or 3719 counting only the distinct ones).

The product of its digits is 945000, while the sum is 45.

The square root of 55576656 is about 7454.9752514680. The cubic root of 55576656 is about 381.6197160284.

The spelling of 55576656 in words is "fifty-five million, five hundred seventy-six thousand, six hundred fifty-six".