30020055357 has 4 divisors (see below), whose sum is σ = 40026740480. Its totient is φ = 20013370236.

The previous prime is 30020055341. The next prime is 30020055361. The reversal of 30020055357 is 75355002003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30020055357 - 2⁴ = 30020055341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020055257) 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, 5003342557 + ... + 5003342562.

It is an arithmetic number, because the mean of its divisors is an integer number (10006685120).

Almost surely, 2^30020055357 is an apocalyptic number.

It is an amenable number.

30020055357 is a deficient number, since it is larger than the sum of its proper divisors (10006685123).

30020055357 is a wasteful number, since it uses less digits than its factorization.

30020055357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10006685122.

The product of its (nonzero) digits is 15750, while the sum is 30.

The spelling of 30020055357 in words is "thirty billion, twenty million, fifty-five thousand, three hundred fifty-seven".