55476607999 has 4 divisors (see below), whose sum is σ = 55687545936. Its totient is φ = 55265670064.

The previous prime is 55476607993. The next prime is 55476608003. The reversal of 55476607999 is 99970667455.

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 55476607999 - 2¹⁹ = 55476083711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55476607993) 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, 105468574 + ... + 105469099.

It is an arithmetic number, because the mean of its divisors is an integer number (13921886484).

Almost surely, 2^55476607999 is an apocalyptic number.

55476607999 is a deficient number, since it is larger than the sum of its proper divisors (210937937).

55476607999 is a wasteful number, since it uses less digits than its factorization.

55476607999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210937936.

The product of its (nonzero) digits is 128595600, while the sum is 67.

The spelling of 55476607999 in words is "fifty-five billion, four hundred seventy-six million, six hundred seven thousand, nine hundred ninety-nine".