55493171377 has 4 divisors (see below), whose sum is σ = 63420767296. Its totient is φ = 47565575460.

The previous prime is 55493171359. The next prime is 55493171401. The reversal of 55493171377 is 77317139455.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77317139455 = 5 ⋅15463427891.

It is a cyclic number.

It is not a de Polignac number, because 55493171377 - 2³¹ = 53345687729 is a prime.

It is a super-2 number, since 2×55493171377² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55493171177) 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 3 ways as a sum of consecutive naturals, for example, 3963797949 + ... + 3963797962.

It is an arithmetic number, because the mean of its divisors is an integer number (15855191824).

Almost surely, 2^55493171377 is an apocalyptic number.

It is an amenable number.

55493171377 is a deficient number, since it is larger than the sum of its proper divisors (7927595919).

55493171377 is an equidigital number, since it uses as much as digits as its factorization.

55493171377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7927595918.

The product of its digits is 2778300, while the sum is 52.

The spelling of 55493171377 in words is "fifty-five billion, four hundred ninety-three million, one hundred seventy-one thousand, three hundred seventy-seven".