30028080557 has 8 divisors (see below), whose sum is σ = 30670882176. Its totient is φ = 29385441792.

The previous prime is 30028080553. The next prime is 30028080581. The reversal of 30028080557 is 75508082003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30028080557 - 2² = 30028080553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30028080557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30028080553) 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, 377453 + ... + 450029.

It is an arithmetic number, because the mean of its divisors is an integer number (3833860272).

Almost surely, 2^30028080557 is an apocalyptic number.

It is an amenable number.

30028080557 is a deficient number, since it is larger than the sum of its proper divisors (642801619).

30028080557 is an equidigital number, since it uses as much as digits as its factorization.

30028080557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81427.

The product of its (nonzero) digits is 67200, while the sum is 38.

The spelling of 30028080557 in words is "thirty billion, twenty-eight million, eighty thousand, five hundred fifty-seven".