1553268592261 has 8 divisors (see below), whose sum is σ = 1555029768600. Its totient is φ = 1551507609600.

The previous prime is 1553268592247. The next prime is 1553268592273. The reversal of 1553268592261 is 1622958623551.

It can be written as a sum of positive squares in 4 ways, for example, as 75621700036 + 1477646892225 = 274994^2 + 1215585^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1553268592261 - 2⁷ = 1553268592133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553268592361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21238525 + ... + 21311533.

It is an arithmetic number, because the mean of its divisors is an integer number (194378721075).

Almost surely, 2^{1553268592261} is an apocalyptic number.

It is an amenable number.

1553268592261 is a deficient number, since it is larger than the sum of its proper divisors (1761176339).

1553268592261 is an equidigital number, since it uses as much as digits as its factorization.

1553268592261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96839.

The product of its digits is 7776000, while the sum is 55.

The spelling of 1553268592261 in words is "one trillion, five hundred fifty-three billion, two hundred sixty-eight million, five hundred ninety-two thousand, two hundred sixty-one".