54494525849 has 4 divisors (see below), whose sum is σ = 56373647460. Its totient is φ = 52615404240.

The previous prime is 54494525713. The next prime is 54494525903. The reversal of 54494525849 is 94852549445.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9362497600 + 45132028249 = 96760^2 + 212443^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54494525849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54494525249) 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, 939560762 + ... + 939560819.

It is an arithmetic number, because the mean of its divisors is an integer number (14093411865).

Almost surely, 2^54494525849 is an apocalyptic number.

It is an amenable number.

54494525849 is a deficient number, since it is larger than the sum of its proper divisors (1879121611).

54494525849 is a wasteful number, since it uses less digits than its factorization.

54494525849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879121610.

The product of its digits is 41472000, while the sum is 59.

The spelling of 54494525849 in words is "fifty-four billion, four hundred ninety-four million, five hundred twenty-five thousand, eight hundred forty-nine".