55802616549 has 8 divisors (see below), whose sum is σ = 74409733440. Its totient is φ = 37198622016.

The previous prime is 55802616539. The next prime is 55802616601. The reversal of 55802616549 is 94561620855.

It is a happy number.

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

It is not a de Polignac number, because 55802616549 - 2⁵ = 55802616517 is a prime.

It is a super-2 number, since 2×55802616549² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55802616509) 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, 738564 + ... + 810605.

It is an arithmetic number, because the mean of its divisors is an integer number (9301216680).

Almost surely, 2^55802616549 is an apocalyptic number.

It is an amenable number.

55802616549 is a deficient number, since it is larger than the sum of its proper divisors (18607116891).

55802616549 is a wasteful number, since it uses less digits than its factorization.

55802616549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561179.

The product of its (nonzero) digits is 2592000, while the sum is 51.

The spelling of 55802616549 in words is "fifty-five billion, eight hundred two million, six hundred sixteen thousand, five hundred forty-nine".