55408483919 has 8 divisors (see below), whose sum is σ = 57202011648. Its totient is φ = 53615341080.

The previous prime is 55408483913. The next prime is 55408483931. The reversal of 55408483919 is 91938480455.

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 55408483919 - 2¹⁶ = 55408418383 is a prime.

It is a super-2 number, since 2×55408483919² (a number of 22 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 (55408483913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212084 + ... + 394710.

It is an arithmetic number, because the mean of its divisors is an integer number (7150251456).

Almost surely, 2^55408483919 is an apocalyptic number.

55408483919 is a deficient number, since it is larger than the sum of its proper divisors (1793527729).

55408483919 is a wasteful number, since it uses less digits than its factorization.

55408483919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192445.

The product of its (nonzero) digits is 6220800, while the sum is 56.

The spelling of 55408483919 in words is "fifty-five billion, four hundred eight million, four hundred eighty-three thousand, nine hundred nineteen".