54449952479 has 4 divisors (see below), whose sum is σ = 58638410376. Its totient is φ = 50261494584.

The previous prime is 54449952437. The next prime is 54449952481. The reversal of 54449952479 is 97425994445.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54449952479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54449952499) 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, 2094228929 + ... + 2094228954.

It is an arithmetic number, because the mean of its divisors is an integer number (14659602594).

Almost surely, 2^54449952479 is an apocalyptic number.

54449952479 is a deficient number, since it is larger than the sum of its proper divisors (4188457897).

54449952479 is a wasteful number, since it uses less digits than its factorization.

54449952479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4188457896.

The product of its digits is 65318400, while the sum is 62.

The spelling of 54449952479 in words is "fifty-four billion, four hundred forty-nine million, nine hundred fifty-two thousand, four hundred seventy-nine".