100042554 has 16 divisors (see below), whose sum is σ = 201314592. Its totient is φ = 33142608.

The previous prime is 100042541. The next prime is 100042559. The reversal of 100042554 is 455240001.

It is a super-2 number, since 2×100042554² = 20017025221685832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100042554.

It is not an unprimeable number, because it can be changed into a prime (100042559) 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, 50169 + ... + 52124.

It is an arithmetic number, because the mean of its divisors is an integer number (12582162).

Almost surely, 2^100042554 is an apocalyptic number.

100042554 is an abundant number, since it is smaller than the sum of its proper divisors (101272038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100042554 is a wasteful number, since it uses less digits than its factorization.

100042554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102461.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 100042554 is about 10002.1274736928. The cubic root of 100042554 is about 464.2247134148.

Adding to 100042554 its reverse (455240001), we get a palindrome (555282555).

The spelling of 100042554 in words is "one hundred million, forty-two thousand, five hundred fifty-four".