55086409997 has 8 divisors (see below), whose sum is σ = 55146339000. Its totient is φ = 55026509824.

The previous prime is 55086409981. The next prime is 55086410011. The reversal of 55086409997 is 79990468055.

It can be written as a sum of positive squares in 4 ways, for example, as 37030844356 + 18055565641 = 192434^2 + 134371^2 .

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 55086409997 - 2⁴ = 55086409981 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 (55086409907) 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, 8232029 + ... + 8238717.

It is an arithmetic number, because the mean of its divisors is an integer number (6893292375).

Almost surely, 2^55086409997 is an apocalyptic number.

It is an amenable number.

55086409997 is a deficient number, since it is larger than the sum of its proper divisors (59929003).

55086409997 is a wasteful number, since it uses less digits than its factorization.

55086409997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14415.

The product of its (nonzero) digits is 24494400, while the sum is 62.

The spelling of 55086409997 in words is "fifty-five billion, eighty-six million, four hundred nine thousand, nine hundred ninety-seven".