2553630561 has 12 divisors (see below), whose sum is σ = 3702192000. Its totient is φ = 1696136760.

The previous prime is 2553630559. The next prime is 2553630587. The reversal of 2553630561 is 1650363552.

It is not a de Polignac number, because 2553630561 - 2¹ = 2553630559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2553630661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 521061 + ... + 525938.

It is an arithmetic number, because the mean of its divisors is an integer number (308516000).

Almost surely, 2^2553630561 is an apocalyptic number.

It is an amenable number.

2553630561 is a deficient number, since it is larger than the sum of its proper divisors (1148561439).

2553630561 is a wasteful number, since it uses less digits than its factorization.

2553630561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047276 (or 1047273 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The square root of 2553630561 is about 50533.4598162445. The cubic root of 2553630561 is about 1366.8452747401.

The spelling of 2553630561 in words is "two billion, five hundred fifty-three million, six hundred thirty thousand, five hundred sixty-one".