30556423056 has 40 divisors (see below), whose sum is σ = 79125873120. Its totient is φ = 10161158656.

The previous prime is 30556423049. The next prime is 30556423057. The reversal of 30556423056 is 65032465503.

It is not an unprimeable number, because it can be changed into a prime (30556423057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739545 + ... + 779768.

It is an arithmetic number, because the mean of its divisors is an integer number (1978146828).

Almost surely, 2^30556423056 is an apocalyptic number.

It is an amenable number.

30556423056 is an abundant number, since it is smaller than the sum of its proper divisors (48569450064).

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

30556423056 is a wasteful number, since it uses less digits than its factorization.

30556423056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519743 (or 1519737 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 39.

Adding to 30556423056 its reverse (65032465503), we get a palindrome (95588888559).

The spelling of 30556423056 in words is "thirty billion, five hundred fifty-six million, four hundred twenty-three thousand, fifty-six".