2561242452 has 12 divisors (see below), whose sum is σ = 5976232416. Its totient is φ = 853747480.

The previous prime is 2561242421. The next prime is 2561242459. The reversal of 2561242452 is 2542421652.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2561242459) 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, 106718424 + ... + 106718447.

It is an arithmetic number, because the mean of its divisors is an integer number (498019368).

Almost surely, 2^2561242452 is an apocalyptic number.

It is an amenable number.

2561242452 is an abundant number, since it is smaller than the sum of its proper divisors (3414989964).

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

2561242452 is a wasteful number, since it uses less digits than its factorization.

2561242452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213436878 (or 213436876 counting only the distinct ones).

The product of its digits is 38400, while the sum is 33.

The square root of 2561242452 is about 50608.7191302052. The cubic root of 2561242452 is about 1368.2020301977.

The spelling of 2561242452 in words is "two billion, five hundred sixty-one million, two hundred forty-two thousand, four hundred fifty-two".