54981551671 has 16 divisors (see below), whose sum is σ = 58488369408. Its totient is φ = 51592896000.

The previous prime is 54981551633. The next prime is 54981551683. The reversal of 54981551671 is 17615518945.

It is a cyclic number.

It is not a de Polignac number, because 54981551671 - 2²⁵ = 54947997239 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 (54981551771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254271 + ... + 417871.

It is an arithmetic number, because the mean of its divisors is an integer number (3655523088).

Almost surely, 2^54981551671 is an apocalyptic number.

54981551671 is a deficient number, since it is larger than the sum of its proper divisors (3506817737).

54981551671 is a wasteful number, since it uses less digits than its factorization.

54981551671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163962.

The product of its digits is 1512000, while the sum is 52.

The spelling of 54981551671 in words is "fifty-four billion, nine hundred eighty-one million, five hundred fifty-one thousand, six hundred seventy-one".