55139590747 has 8 divisors (see below), whose sum is σ = 56526018192. Its totient is φ = 53755142400.

The previous prime is 55139590711. The next prime is 55139590757. The reversal of 55139590747 is 74709593155.

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 55139590747 - 2⁷ = 55139590619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55139590757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438273 + ... + 549874.

It is an arithmetic number, because the mean of its divisors is an integer number (7065752274).

Almost surely, 2^55139590747 is an apocalyptic number.

55139590747 is a deficient number, since it is larger than the sum of its proper divisors (1386427445).

55139590747 is a wasteful number, since it uses less digits than its factorization.

55139590747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989549.

The product of its (nonzero) digits is 5953500, while the sum is 55.

The spelling of 55139590747 in words is "fifty-five billion, one hundred thirty-nine million, five hundred ninety thousand, seven hundred forty-seven".