55517003291 has 8 divisors (see below), whose sum is σ = 56904739584. Its totient is φ = 54130870080.

The previous prime is 55517003287. The next prime is 55517003293. The reversal of 55517003291 is 19230071555.

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 55517003291 - 2² = 55517003287 is a prime.

It is a super-3 number, since 3×55517003291³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55517003293) 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, 330491 + ... + 469316.

It is an arithmetic number, because the mean of its divisors is an integer number (7113092448).

Almost surely, 2^55517003291 is an apocalyptic number.

55517003291 is a deficient number, since it is larger than the sum of its proper divisors (1387736293).

55517003291 is a wasteful number, since it uses less digits than its factorization.

55517003291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801541.

The product of its (nonzero) digits is 47250, while the sum is 38.

The spelling of 55517003291 in words is "fifty-five billion, five hundred seventeen million, three thousand, two hundred ninety-one".