55321612355 has 8 divisors (see below), whose sum is σ = 66543623664. Its totient is φ = 44152164000.

The previous prime is 55321612349. The next prime is 55321612417.

55321612355 is nontrivially palindromic in base 10.

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

It is a de Polignac number, because none of the positive numbers 2^k-55321612355 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13138421 + ... + 13142630.

It is an arithmetic number, because the mean of its divisors is an integer number (8317952958).

Almost surely, 2^55321612355 is an apocalyptic number.

55321612355 is a deficient number, since it is larger than the sum of its proper divisors (11222011309).

55321612355 is a wasteful number, since it uses less digits than its factorization.

55321612355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26281477.

The product of its digits is 135000, while the sum is 38.

The spelling of 55321612355 in words is "fifty-five billion, three hundred twenty-one million, six hundred twelve thousand, three hundred fifty-five".