55909284479 has 8 divisors (see below), whose sum is σ = 56466028560. Its totient is φ = 55354694976.

The previous prime is 55909284451. The next prime is 55909284503. The reversal of 55909284479 is 97448290955.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55909284479 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 (55909284679) 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, 486464 + ... + 590309.

It is an arithmetic number, because the mean of its divisors is an integer number (7058253570).

Almost surely, 2^55909284479 is an apocalyptic number.

55909284479 is a deficient number, since it is larger than the sum of its proper divisors (556744081).

55909284479 is a wasteful number, since it uses less digits than its factorization.

55909284479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077289.

The product of its (nonzero) digits is 32659200, while the sum is 62.

The spelling of 55909284479 in words is "fifty-five billion, nine hundred nine million, two hundred eighty-four thousand, four hundred seventy-nine".