2561435302 has 8 divisors (see below), whose sum is σ = 3851548200. Its totient is φ = 1277585904.

The previous prime is 2561435299. The next prime is 2561435329. The reversal of 2561435302 is 2035341652.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1564852 + ... + 1566487.

It is an arithmetic number, because the mean of its divisors is an integer number (481443525).

Almost surely, 2^2561435302 is an apocalyptic number.

2561435302 is a deficient number, since it is larger than the sum of its proper divisors (1290112898).

2561435302 is a wasteful number, since it uses less digits than its factorization.

2561435302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131750.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 2561435302 is about 50610.6243984403. The cubic root of 2561435302 is about 1368.2363691490.

Adding to 2561435302 its reverse (2035341652), we get a palindrome (4596776954).

The spelling of 2561435302 in words is "two billion, five hundred sixty-one million, four hundred thirty-five thousand, three hundred two".