561650344025 has 24 divisors (see below), whose sum is σ = 728503848960. Its totient is φ = 428733613440.

The previous prime is 561650344009. The next prime is 561650344033. The reversal of 561650344025 is 520443056165.

It is a happy number.

It is not a de Polignac number, because 561650344025 - 2⁴ = 561650344009 is a prime.

It is a super-2 number, since 2×561650344025² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 958937 + ... + 1429286.

It is an arithmetic number, because the mean of its divisors is an integer number (30354327040).

Almost surely, 2^561650344025 is an apocalyptic number.

It is an amenable number.

561650344025 is a deficient number, since it is larger than the sum of its proper divisors (166853504935).

561650344025 is a wasteful number, since it uses less digits than its factorization.

561650344025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388665 (or 2388660 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 561650344025 in words is "five hundred sixty-one billion, six hundred fifty million, three hundred forty-four thousand, twenty-five".