30561345506552 has 32 divisors (see below), whose sum is σ = 66224424463200. Its totient is φ = 12950554113024.

The previous prime is 30561345506491. The next prime is 30561345506561. The reversal of 30561345506552 is 25560554316503.

It is a happy number.

It is a super-2 number, since 2×30561345506552² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30561345506552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3065940593 + ... + 3065950560.

It is an arithmetic number, because the mean of its divisors is an integer number (2069513264475).

Almost surely, 2^{30561345506552} is an apocalyptic number.

It is an amenable number.

30561345506552 is an abundant number, since it is smaller than the sum of its proper divisors (35663078956648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30561345506552 is a wasteful number, since it uses less digits than its factorization.

30561345506552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6131891255 (or 6131891251 counting only the distinct ones).

The product of its (nonzero) digits is 8100000, while the sum is 50.

The spelling of 30561345506552 in words is "thirty trillion, five hundred sixty-one billion, three hundred forty-five million, five hundred six thousand, five hundred fifty-two".