100556422 has 4 divisors (see below), whose sum is σ = 150834636. Its totient is φ = 50278210.

The previous prime is 100556413. The next prime is 100556429. The reversal of 100556422 is 224655001.

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

It is a super-2 number, since 2×100556422² = 20223188010884168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100556429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25139104 + ... + 25139107.

It is an arithmetic number, because the mean of its divisors is an integer number (37708659).

Almost surely, 2^100556422 is an apocalyptic number.

100556422 is a deficient number, since it is larger than the sum of its proper divisors (50278214).

100556422 is an equidigital number, since it uses as much as digits as its factorization.

100556422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50278213.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 100556422 is about 10027.7825066163. The cubic root of 100556422 is about 465.0181855916.

The spelling of 100556422 in words is "one hundred million, five hundred fifty-six thousand, four hundred twenty-two".