30561551412550 has 48 divisors (see below), whose sum is σ = 57784537481472. Its totient is φ = 12022515590400.

The previous prime is 30561551412533. The next prime is 30561551412551. The reversal of 30561551412550 is 5521415516503.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30561551412497 and 30561551412506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30561551412551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20958802 + ... + 22369498.

It is an arithmetic number, because the mean of its divisors is an integer number (1203844530864).

Almost surely, 2^{30561551412550} is an apocalyptic number.

30561551412550 is a deficient number, since it is larger than the sum of its proper divisors (27222986068922).

30561551412550 is a wasteful number, since it uses less digits than its factorization.

30561551412550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417873 (or 1417868 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 43.

The spelling of 30561551412550 in words is "thirty trillion, five hundred sixty-one billion, five hundred fifty-one million, four hundred twelve thousand, five hundred fifty".