54981258557 has 16 divisors (see below), whose sum is σ = 56684940480. Its totient is φ = 53289358848.

The previous prime is 54981258529. The next prime is 54981258559. The reversal of 54981258557 is 75585218945.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 54981258557 - 2¹⁰ = 54981257533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54981258496 and 54981258505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54981258559) 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, 24251738 + ... + 24254004.

It is an arithmetic number, because the mean of its divisors is an integer number (3542808780).

Almost surely, 2^54981258557 is an apocalyptic number.

It is an amenable number.

54981258557 is a deficient number, since it is larger than the sum of its proper divisors (1703681923).

54981258557 is a wasteful number, since it uses less digits than its factorization.

54981258557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4540.

The product of its digits is 20160000, while the sum is 59.

The spelling of 54981258557 in words is "fifty-four billion, nine hundred eighty-one million, two hundred fifty-eight thousand, five hundred fifty-seven".