55321316536 has 32 divisors (see below), whose sum is σ = 110540298240. Its totient is φ = 25895080288.

The previous prime is 55321316527. The next prime is 55321316539. The reversal of 55321316536 is 63561312355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55321316539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3189856 + ... + 3207151.

It is an arithmetic number, because the mean of its divisors is an integer number (3454384320).

Almost surely, 2^55321316536 is an apocalyptic number.

It is an amenable number.

55321316536 is a deficient number, since it is larger than the sum of its proper divisors (55218981704).

55321316536 is a wasteful number, since it uses less digits than its factorization.

55321316536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6397083 (or 6397079 counting only the distinct ones).

The product of its digits is 243000, while the sum is 40.

The spelling of 55321316536 in words is "fifty-five billion, three hundred twenty-one million, three hundred sixteen thousand, five hundred thirty-six".