30556421125402 has 8 divisors (see below), whose sum is σ = 46586019093012. Its totient is φ = 15027748094400.

The previous prime is 30556421125357. The next prime is 30556421125403. The reversal of 30556421125402 is 20452112465503.

It can be written as a sum of positive squares in 2 ways, for example, as 24700790660121 + 5855630465281 = 4969989^2 + 2419841^2 .

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

It is not an unprimeable number, because it can be changed into a prime (30556421125403) 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, 125231233999 + ... + 125231234242.

Almost surely, 2^{30556421125402} is an apocalyptic number.

30556421125402 is a deficient number, since it is larger than the sum of its proper divisors (16029597967610).

30556421125402 is a wasteful number, since it uses less digits than its factorization.

30556421125402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250462468304.

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 30556421125402 in words is "thirty trillion, five hundred fifty-six billion, four hundred twenty-one million, one hundred twenty-five thousand, four hundred two".