2573420544 has 144 divisors (see below), whose sum is σ = 7709279760. Its totient is φ = 857640960.

The previous prime is 2573420537. The next prime is 2573420569. The reversal of 2573420544 is 4450243752.

2573420544 is a `hidden beast` number, since 2 + 5 + 73 + 42 + 0 + 544 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2573420499 and 2573420508.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 495079 + ... + 500249.

It is an arithmetic number, because the mean of its divisors is an integer number (53536665).

Almost surely, 2^2573420544 is an apocalyptic number.

2573420544 is a gapful number since it is divisible by the number (24) 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 2573420544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3854639880).

2573420544 is an abundant number, since it is smaller than the sum of its proper divisors (5135859216).

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

2573420544 is an frugal number, since it uses more digits than its factorization.

2573420544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5208 (or 5176 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 36.

The square root of 2573420544 is about 50728.8925958373. The cubic root of 2573420544 is about 1370.3670929189.

The spelling of 2573420544 in words is "two billion, five hundred seventy-three million, four hundred twenty thousand, five hundred forty-four".