100005554 has 16 divisors (see below), whose sum is σ = 165269376. Its totient is φ = 45006000.

The previous prime is 100005551. The next prime is 100005583. The reversal of 100005554 is 455500001.

It is a super-2 number, since 2×100005554² = 20002221661693832, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100005551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20282 + ... + 24725.

It is an arithmetic number, because the mean of its divisors is an integer number (10329336).

Almost surely, 2^100005554 is an apocalyptic number.

100005554 is a deficient number, since it is larger than the sum of its proper divisors (65263822).

100005554 is a wasteful number, since it uses less digits than its factorization.

100005554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45121.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 100005554 is about 10000.2776961442. The cubic root of 100005554 is about 464.1674763303.

Adding to 100005554 its reverse (455500001), we get a palindrome (555505555).

The spelling of 100005554 in words is "one hundred million, five thousand, five hundred fifty-four".