55202444521 has 8 divisors (see below), whose sum is σ = 64278857664. Its totient is φ = 46423618800.

The previous prime is 55202444477. The next prime is 55202444533. The reversal of 55202444521 is 12544420255.

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 55202444521 - 2¹⁹ = 55201920233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55202444551) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 74396455 + ... + 74397196.

It is an arithmetic number, because the mean of its divisors is an integer number (8034857208).

Almost surely, 2^55202444521 is an apocalyptic number.

It is an amenable number.

55202444521 is a deficient number, since it is larger than the sum of its proper divisors (9076413143).

55202444521 is a wasteful number, since it uses less digits than its factorization.

55202444521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148793711.

The product of its (nonzero) digits is 64000, while the sum is 34.

Adding to 55202444521 its reverse (12544420255), we get a palindrome (67746864776).

The spelling of 55202444521 in words is "fifty-five billion, two hundred two million, four hundred forty-four thousand, five hundred twenty-one".