2557543079520 has 1152 divisors, whose sum is σ = 11259076308480. Its totient is φ = 538631700480.

The previous prime is 2557543079477. The next prime is 2557543079549. The reversal of 2557543079520 is 259703457552.

2557543079520 is a `hidden beast` number, since 2 + 5 + 5 + 7 + 5 + 43 + 0 + 79 + 520 = 666.

2557543079520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 94503751 + ... + 94530809.

It is an arithmetic number, because the mean of its divisors is an integer number (9773503740).

Almost surely, 2^{2557543079520} is an apocalyptic number.

2557543079520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2557543079520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5629538154240).

2557543079520 is an abundant number, since it is smaller than the sum of its proper divisors (8701533228960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2557543079520 is a wasteful number, since it uses less digits than its factorization.

2557543079520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27130 (or 27110 counting only the distinct ones).

The product of its (nonzero) digits is 13230000, while the sum is 54.

The spelling of 2557543079520 in words is "two trillion, five hundred fifty-seven billion, five hundred forty-three million, seventy-nine thousand, five hundred twenty".