55321512235232 has 24 divisors (see below), whose sum is σ = 108914530725000. Its totient is φ = 27660679035264.

The previous prime is 55321512235219. The next prime is 55321512235237. The reversal of 55321512235232 is 23253221512355.

It is a self number, because there is not a number n which added to its sum of digits gives 55321512235232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55321512235237) 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, 10282394 + ... + 14709542.

It is an arithmetic number, because the mean of its divisors is an integer number (4538105446875).

Almost surely, 2^{55321512235232} is an apocalyptic number.

It is an amenable number.

55321512235232 is a deficient number, since it is larger than the sum of its proper divisors (53593018489768).

55321512235232 is a wasteful number, since it uses less digits than its factorization.

55321512235232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4817658 (or 4817650 counting only the distinct ones).

The product of its digits is 540000, while the sum is 41.

Adding to 55321512235232 its reverse (23253221512355), we get a palindrome (78574733747587).

The spelling of 55321512235232 in words is "fifty-five trillion, three hundred twenty-one billion, five hundred twelve million, two hundred thirty-five thousand, two hundred thirty-two".