100432553 has 16 divisors (see below), whose sum is σ = 110388096. Its totient is φ = 90814080.

The previous prime is 100432523. The next prime is 100432681. The reversal of 100432553 is 355234001.

It is not a de Polignac number, because 100432553 - 2¹² = 100428457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100432523) 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 15 ways as a sum of consecutive naturals, for example, 214826 + ... + 215292.

It is an arithmetic number, because the mean of its divisors is an integer number (6899256).

Almost surely, 2^100432553 is an apocalyptic number.

100432553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

100432553 is a deficient number, since it is larger than the sum of its proper divisors (9955543).

100432553 is a wasteful number, since it uses less digits than its factorization.

100432553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 100432553 is about 10021.6043126837. The cubic root of 100432553 is about 464.8271651195.

Adding to 100432553 its reverse (355234001), we get a palindrome (455666554).

The spelling of 100432553 in words is "one hundred million, four hundred thirty-two thousand, five hundred fifty-three".