55123123532 has 12 divisors (see below), whose sum is σ = 101542596120. Its totient is φ = 26110953216.

The previous prime is 55123123493. The next prime is 55123123547. The reversal of 55123123532 is 23532132155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362652053 + ... + 362652204.

It is an arithmetic number, because the mean of its divisors is an integer number (8461883010).

Almost surely, 2^55123123532 is an apocalyptic number.

It is an amenable number.

55123123532 is a deficient number, since it is larger than the sum of its proper divisors (46419472588).

55123123532 is a wasteful number, since it uses less digits than its factorization.

55123123532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725304280 (or 725304278 counting only the distinct ones).

The product of its digits is 27000, while the sum is 32.

Adding to 55123123532 its reverse (23532132155), we get a palindrome (78655255687).

The spelling of 55123123532 in words is "fifty-five billion, one hundred twenty-three million, one hundred twenty-three thousand, five hundred thirty-two".