55322500 has 30 divisors (see below), whose sum is σ = 120984710. Its totient is φ = 22128000.

The previous prime is 55322497. The next prime is 55322537. The reversal of 55322500 is 522355.

It can be written as a sum of positive squares in 5 ways, for example, as 7795264 + 47527236 = 2792^2 + 6894^2 .

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 8565 + ... + 13564.

Almost surely, 2^55322500 is an apocalyptic number.

55322500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55322500 is an abundant number, since it is smaller than the sum of its proper divisors (65662210).

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

55322500 is a wasteful number, since it uses less digits than its factorization.

55322500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22153 (or 22136 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 55322500 is about 7437.9096525838. The cubic root of 55322500 is about 381.0371023129.

Adding to 55322500 its reverse (522355), we get a palindrome (55844855).

The spelling of 55322500 in words is "fifty-five million, three hundred twenty-two thousand, five hundred".