55322532 has 18 divisors (see below), whose sum is σ = 139843158. Its totient is φ = 18440832.

The previous prime is 55322497. The next prime is 55322537. The reversal of 55322532 is 23522355.

It can be written as a sum of positive squares in only one way, i.e., 53231616 + 2090916 = 7296^2 + 1446^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 55322496 and 55322505.

It is not an unprimeable number, because it can be changed into a prime (55322537) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 768333 + ... + 768404.

Almost surely, 2^55322532 is an apocalyptic number.

It is an amenable number.

55322532 is an abundant number, since it is smaller than the sum of its proper divisors (84520626).

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

55322532 is a wasteful number, since it uses less digits than its factorization.

55322532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536747 (or 1536742 counting only the distinct ones).

The product of its digits is 9000, while the sum is 27.

The square root of 55322532 is about 7437.9118037256. The cubic root of 55322532 is about 381.0371757802.

Adding to 55322532 its reverse (23522355), we get a palindrome (78844887).

The spelling of 55322532 in words is "fifty-five million, three hundred twenty-two thousand, five hundred thirty-two".