30556421125019 has 2 divisors, whose sum is σ = 30556421125020. Its totient is φ = 30556421125018.

The previous prime is 30556421124989. The next prime is 30556421125033. The reversal of 30556421125019 is 91052112465503.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30556421125019 - 2¹² = 30556421120923 is a prime.

It is a super-2 number, since 2×30556421125019² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30556421125049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15278210562509 + 15278210562510.

It is an arithmetic number, because the mean of its divisors is an integer number (15278210562510).

Almost surely, 2^{30556421125019} is an apocalyptic number.

30556421125019 is a deficient number, since it is larger than the sum of its proper divisors (1).

30556421125019 is an equidigital number, since it uses as much as digits as its factorization.

30556421125019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324000, while the sum is 44.

The spelling of 30556421125019 in words is "thirty trillion, five hundred fifty-six billion, four hundred twenty-one million, one hundred twenty-five thousand, nineteen".