55315050321 has 8 divisors (see below), whose sum is σ = 73759513824. Its totient is φ = 36873643520.

The previous prime is 55315050311. The next prime is 55315050361. The reversal of 55315050321 is 12305051355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55315050321 - 2¹⁵ = 55315017553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55315050311) 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, 721611 + ... + 794576.

It is an arithmetic number, because the mean of its divisors is an integer number (9219939228).

Almost surely, 2^55315050321 is an apocalyptic number.

It is an amenable number.

55315050321 is a deficient number, since it is larger than the sum of its proper divisors (18444463503).

55315050321 is a wasteful number, since it uses less digits than its factorization.

55315050321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528351.

The product of its (nonzero) digits is 11250, while the sum is 30.

The spelling of 55315050321 in words is "fifty-five billion, three hundred fifteen million, fifty thousand, three hundred twenty-one".