55054166789 has 4 divisors (see below), whose sum is σ = 55987288320. Its totient is φ = 54121045260.

The previous prime is 55054166759. The next prime is 55054166809. The reversal of 55054166789 is 98766145055.

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: 98766145055 = 5 ⋅19753229011.

It is a cyclic number.

It is not a de Polignac number, because 55054166789 - 2¹² = 55054162693 is a prime.

It is a super-2 number, since 2×55054166789² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55054166759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466560677 + ... + 466560794.

It is an arithmetic number, because the mean of its divisors is an integer number (13996822080).

Almost surely, 2^55054166789 is an apocalyptic number.

55054166789 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

55054166789 is a deficient number, since it is larger than the sum of its proper divisors (933121531).

55054166789 is an equidigital number, since it uses as much as digits as its factorization.

55054166789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933121530.

The product of its (nonzero) digits is 9072000, while the sum is 56.

The spelling of 55054166789 in words is "fifty-five billion, fifty-four million, one hundred sixty-six thousand, seven hundred eighty-nine".