561520206014553 has 12 divisors (see below), whose sum is σ = 811086661589568. Its totient is φ = 374345918055000.

The previous prime is 561520206014519. The next prime is 561520206014561. The reversal of 561520206014553 is 355410602025165.

561520206014553 is a `hidden beast` number, since 5 + 6 + 1 + 5 + 2 + 0 + 20 + 60 + 14 + 553 = 666.

It is not a de Polignac number, because 561520206014553 - 2³² = 561515911047257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 561520206014499 and 561520206014508.

It is not an unprimeable number, because it can be changed into a prime (561520206214553) 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, 69803925 + ... + 77431442.

It is an arithmetic number, because the mean of its divisors is an integer number (67590555132464).

Almost surely, 2^{561520206014553} is an apocalyptic number.

It is an amenable number.

561520206014553 is a deficient number, since it is larger than the sum of its proper divisors (249566455575015).

561520206014553 is a wasteful number, since it uses less digits than its factorization.

561520206014553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147659124 (or 147659121 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

The spelling of 561520206014553 in words is "five hundred sixty-one trillion, five hundred twenty billion, two hundred six million, fourteen thousand, five hundred fifty-three".