55232680 has 16 divisors (see below), whose sum is σ = 124273620. Its totient is φ = 22093056.

The previous prime is 55232663. The next prime is 55232689. The reversal of 55232680 is 8623255.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 53377636 + 1855044 = 7306^2 + 1362^2 .

It is not an unprimeable number, because it can be changed into a prime (55232689) 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 3 ways as a sum of consecutive naturals, for example, 690369 + ... + 690448.

Almost surely, 2^55232680 is an apocalyptic number.

It is an amenable number.

55232680 is an abundant number, since it is smaller than the sum of its proper divisors (69040940).

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

55232680 is a wasteful number, since it uses less digits than its factorization.

55232680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380828 (or 1380824 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 55232680 is about 7431.8692130580. The cubic root of 55232680 is about 380.8307770302.

The spelling of 55232680 in words is "fifty-five million, two hundred thirty-two thousand, six hundred eighty".