100520554 has 8 divisors (see below), whose sum is σ = 155980260. Its totient is φ = 48527136.

The previous prime is 100520551. The next prime is 100520579. The reversal of 100520554 is 455025001.

It can be written as a sum of positive squares in 2 ways, for example, as 100460529 + 60025 = 10023^2 + 245^2 .

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 (100520551) 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 in 3 ways as a sum of consecutive naturals, for example, 866499 + ... + 866614.

Almost surely, 2^100520554 is an apocalyptic number.

100520554 is a deficient number, since it is larger than the sum of its proper divisors (55459706).

100520554 is a wasteful number, since it uses less digits than its factorization.

100520554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733144.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 100520554 is about 10025.9939158170. The cubic root of 100520554 is about 464.9628890875.

Adding to 100520554 its reverse (455025001), we get a palindrome (555545555).

The spelling of 100520554 in words is "one hundred million, five hundred twenty thousand, five hundred fifty-four".