2561053546 has 8 divisors (see below), whose sum is σ = 3841797060. Its totient is φ = 1280454528.

The previous prime is 2561053541. The next prime is 2561053549. The reversal of 2561053546 is 6453501652.

It can be written as a sum of positive squares in 2 ways, for example, as 2016997921 + 544055625 = 44911^2 + 23325^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2561053541) 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, 41850 + ... + 82906.

Almost surely, 2^2561053546 is an apocalyptic number.

2561053546 is a deficient number, since it is larger than the sum of its proper divisors (1280743514).

2561053546 is a wasteful number, since it uses less digits than its factorization.

2561053546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72248.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 2561053546 is about 50606.8527573095. The cubic root of 2561053546 is about 1368.1683918455.

The spelling of 2561053546 in words is "two billion, five hundred sixty-one million, fifty-three thousand, five hundred forty-six".