55821592039 has 8 divisors (see below), whose sum is σ = 56707475760. Its totient is φ = 54938984256.

The previous prime is 55821592033. The next prime is 55821592063. The reversal of 55821592039 is 93029512855.

It is a happy number.

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 55821592039 - 2²⁷ = 55687374311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55821591983 and 55821592001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55821592033) 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, 784624 + ... + 852805.

It is an arithmetic number, because the mean of its divisors is an integer number (7088434470).

Almost surely, 2^55821592039 is an apocalyptic number.

55821592039 is a deficient number, since it is larger than the sum of its proper divisors (885883721).

55821592039 is a wasteful number, since it uses less digits than its factorization.

55821592039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637969.

The product of its (nonzero) digits is 972000, while the sum is 49.

The spelling of 55821592039 in words is "fifty-five billion, eight hundred twenty-one million, five hundred ninety-two thousand, thirty-nine".