55112530 has 32 divisors (see below), whose sum is σ = 108667008. Its totient is φ = 19958400.

The previous prime is 55112507. The next prime is 55112537. The reversal of 55112530 is 3521155.

55112530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (55112537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30019 + ... + 31801.

It is an arithmetic number, because the mean of its divisors is an integer number (3395844).

Almost surely, 2^55112530 is an apocalyptic number.

55112530 is a deficient number, since it is larger than the sum of its proper divisors (53554478).

55112530 is a wasteful number, since it uses less digits than its factorization.

55112530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2082.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 55112530 is about 7423.7813814794. The cubic root of 55112530 is about 380.5544307503.

Adding to 55112530 its reverse (3521155), we get a palindrome (58633685).

It can be divided in two parts, 551125 and 30, that added together give a palindrome (551155).

The spelling of 55112530 in words is "fifty-five million, one hundred twelve thousand, five hundred thirty".