2561453364 has 24 divisors (see below), whose sum is σ = 5977843200. Its totient is φ = 853657984.

The previous prime is 2561453339. The next prime is 2561453383. The reversal of 2561453364 is 4633541652.

It is a super-2 number, since 2×2561453364² = 13122086671893832992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59437 + ... + 93035.

It is an arithmetic number, because the mean of its divisors is an integer number (249076800).

Almost surely, 2^2561453364 is an apocalyptic number.

It is an amenable number.

2561453364 is an abundant number, since it is smaller than the sum of its proper divisors (3416389836).

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

2561453364 is a wasteful number, since it uses less digits than its factorization.

2561453364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39959 (or 39957 counting only the distinct ones).

The product of its digits is 259200, while the sum is 39.

The square root of 2561453364 is about 50610.8028389197. The cubic root of 2561453364 is about 1368.2395851879.

The spelling of 2561453364 in words is "two billion, five hundred sixty-one million, four hundred fifty-three thousand, three hundred sixty-four".