55724316232 has 64 divisors (see below), whose sum is σ = 114070824000. Its totient is φ = 25365567744.

The previous prime is 55724316223. The next prime is 55724316293. The reversal of 55724316232 is 23261342755.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5337994 + ... + 5348422.

It is an arithmetic number, because the mean of its divisors is an integer number (1782356625).

Almost surely, 2^55724316232 is an apocalyptic number.

55724316232 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55724316232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57035412000).

55724316232 is an abundant number, since it is smaller than the sum of its proper divisors (58346507768).

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

55724316232 is a wasteful number, since it uses less digits than its factorization.

55724316232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11150 (or 11146 counting only the distinct ones).

The product of its digits is 302400, while the sum is 40.

Adding to 55724316232 its reverse (23261342755), we get a palindrome (78985658987).

The spelling of 55724316232 in words is "fifty-five billion, seven hundred twenty-four million, three hundred sixteen thousand, two hundred thirty-two".