55399722723799 has 8 divisors (see below), whose sum is σ = 58659188618880. Its totient is φ = 52140330014976.

The previous prime is 55399722723721. The next prime is 55399722723841. The reversal of 55399722723799 is 99732722799355.

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 55399722723799 - 2⁷ = 55399722723671 is a prime.

It is a super-2 number, since 2×55399722723799² (a number of 28 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 (55399722703799) 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, 16734279 + ... + 19769560.

It is an arithmetic number, because the mean of its divisors is an integer number (7332398577360).

Almost surely, 2^{55399722723799} is an apocalyptic number.

55399722723799 is a deficient number, since it is larger than the sum of its proper divisors (3259465895081).

55399722723799 is a wasteful number, since it uses less digits than its factorization.

55399722723799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36593129.

The product of its digits is 4050761400, while the sum is 79.

The spelling of 55399722723799 in words is "fifty-five trillion, three hundred ninety-nine billion, seven hundred twenty-two million, seven hundred twenty-three thousand, seven hundred ninety-nine".