55578301391 has 8 divisors (see below), whose sum is σ = 56874857424. Its totient is φ = 54281928960.

The previous prime is 55578301369. The next prime is 55578301403. The reversal of 55578301391 is 19310387555.

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 55578301391 - 2³⁰ = 54504559567 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 (55578301301) 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, 710021 + ... + 784401.

It is an arithmetic number, because the mean of its divisors is an integer number (7109357178).

Almost surely, 2^55578301391 is an apocalyptic number.

55578301391 is a deficient number, since it is larger than the sum of its proper divisors (1296556033).

55578301391 is a wasteful number, since it uses less digits than its factorization.

55578301391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91801.

The product of its (nonzero) digits is 567000, while the sum is 47.

The spelling of 55578301391 in words is "fifty-five billion, five hundred seventy-eight million, three hundred one thousand, three hundred ninety-one".