30557155056 has 40 divisors (see below), whose sum is σ = 78972601680. Its totient is φ = 10181423616.

The previous prime is 30557155051. The next prime is 30557155063. The reversal of 30557155056 is 65055175503.

It is a junction number, because it is equal to n+sod(n) for n = 30557154999 and 30557155017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30557155051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18151 + ... + 247878.

It is an arithmetic number, because the mean of its divisors is an integer number (1974315042).

Almost surely, 2^30557155056 is an apocalyptic number.

It is an amenable number.

30557155056 is an abundant number, since it is smaller than the sum of its proper divisors (48415446624).

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

30557155056 is a wasteful number, since it uses less digits than its factorization.

30557155056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268433 (or 268427 counting only the distinct ones).

The product of its (nonzero) digits is 393750, while the sum is 42.

The spelling of 30557155056 in words is "thirty billion, five hundred fifty-seven million, one hundred fifty-five thousand, fifty-six".