55310032 has 20 divisors (see below), whose sum is σ = 111823200. Its totient is φ = 26452448.

The previous prime is 55310011. The next prime is 55310039. The reversal of 55310032 is 23001355.

It is a junction number, because it is equal to n+sod(n) for n = 55309991 and 55310009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55310039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74782 + ... + 75517.

It is an arithmetic number, because the mean of its divisors is an integer number (5591160).

Almost surely, 2^55310032 is an apocalyptic number.

It is an amenable number.

55310032 is an abundant number, since it is smaller than the sum of its proper divisors (56513168).

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

55310032 is a wasteful number, since it uses less digits than its factorization.

55310032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150330 (or 150324 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 55310032 is about 7437.0714666460. The cubic root of 55310032 is about 381.0084754580.

Adding to 55310032 its reverse (23001355), we get a palindrome (78311387).

It can be divided in two parts, 553 and 10032, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 55310032 in words is "fifty-five million, three hundred ten thousand, thirty-two".