55320354044551 has 8 divisors (see below), whose sum is σ = 55326124519200. Its totient is φ = 55314583852320.

The previous prime is 55320354044429. The next prime is 55320354044603. The reversal of 55320354044551 is 15544045302355.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55320354044551 is a prime.

It is a super-2 number, since 2×55320354044551² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55320354044651) 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, 785330190 + ... + 785400628.

It is an arithmetic number, because the mean of its divisors is an integer number (6915765564900).

Almost surely, 2^{55320354044551} is an apocalyptic number.

55320354044551 is a deficient number, since it is larger than the sum of its proper divisors (5770474649).

55320354044551 is a wasteful number, since it uses less digits than its factorization.

55320354044551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141209.

The product of its (nonzero) digits is 3600000, while the sum is 46.

The spelling of 55320354044551 in words is "fifty-five trillion, three hundred twenty billion, three hundred fifty-four million, forty-four thousand, five hundred fifty-one".