30557575481 has 4 divisors (see below), whose sum is σ = 30561148452. Its totient is φ = 30554002512.

The previous prime is 30557575459. The next prime is 30557575501. The reversal of 30557575481 is 18457575503.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3863244025 + 26694331456 = 62155^2 + 163384^2 .

It is a cyclic number.

It is not a de Polignac number, because 30557575481 - 2³⁰ = 29483833657 is a prime.

It is a super-2 number, since 2×30557575481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30557575381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1773626 + ... + 1790771.

It is an arithmetic number, because the mean of its divisors is an integer number (7640287113).

Almost surely, 2^30557575481 is an apocalyptic number.

It is an amenable number.

30557575481 is a deficient number, since it is larger than the sum of its proper divisors (3572971).

30557575481 is an equidigital number, since it uses as much as digits as its factorization.

30557575481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3572970.

The product of its (nonzero) digits is 2940000, while the sum is 50.

The spelling of 30557575481 in words is "thirty billion, five hundred fifty-seven million, five hundred seventy-five thousand, four hundred eighty-one".