561055553241 has 4 divisors (see below), whose sum is σ = 748074070992. Its totient is φ = 374037035492.

The previous prime is 561055553213. The next prime is 561055553243. The reversal of 561055553241 is 142355550165.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 561055553241 - 2¹⁴ = 561055536857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 561055553193 and 561055553202.

It is not an unprimeable number, because it can be changed into a prime (561055553243) 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, 93509258871 + ... + 93509258876.

It is an arithmetic number, because the mean of its divisors is an integer number (187018517748).

Almost surely, 2^561055553241 is an apocalyptic number.

It is an amenable number.

561055553241 is a deficient number, since it is larger than the sum of its proper divisors (187018517751).

561055553241 is a wasteful number, since it uses less digits than its factorization.

561055553241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187018517750.

The product of its (nonzero) digits is 450000, while the sum is 42.

The spelling of 561055553241 in words is "five hundred sixty-one billion, fifty-five million, five hundred fifty-three thousand, two hundred forty-one".