55236680 has 32 divisors (see below), whose sum is σ = 124572600. Its totient is φ = 22043136.

The previous prime is 55236679. The next prime is 55236683. The reversal of 55236680 is 8663255.

It can be written as a sum of positive squares in 4 ways, for example, as 55145476 + 91204 = 7426^2 + 302^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55236680.

It is not an unprimeable number, because it can be changed into a prime (55236683) 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 7 ways as a sum of consecutive naturals, for example, 19004 + ... + 21716.

Almost surely, 2^55236680 is an apocalyptic number.

It is an amenable number.

55236680 is an abundant number, since it is smaller than the sum of its proper divisors (69335920).

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

55236680 is a wasteful number, since it uses less digits than its factorization.

55236680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3233 (or 3229 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 55236680 is about 7432.1383194879. The cubic root of 55236680 is about 380.8399701765.

The spelling of 55236680 in words is "fifty-five million, two hundred thirty-six thousand, six hundred eighty".