55091653219 has 4 divisors (see below), whose sum is σ = 56435352120. Its totient is φ = 53747954320.

The previous prime is 55091653181. The next prime is 55091653241. The reversal of 55091653219 is 91235619055.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55091653219 - 2¹⁷ = 55091522147 is a prime.

It is a super-2 number, since 2×55091653219² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55091653919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671849389 + ... + 671849470.

It is an arithmetic number, because the mean of its divisors is an integer number (14108838030).

Almost surely, 2^55091653219 is an apocalyptic number.

55091653219 is a deficient number, since it is larger than the sum of its proper divisors (1343698901).

55091653219 is a wasteful number, since it uses less digits than its factorization.

55091653219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343698900.

The product of its (nonzero) digits is 364500, while the sum is 46.

The spelling of 55091653219 in words is "fifty-five billion, ninety-one million, six hundred fifty-three thousand, two hundred nineteen".