100542550 has 24 divisors (see below), whose sum is σ = 188766936. Its totient is φ = 39839040.

The previous prime is 100542527. The next prime is 100542551. The reversal of 100542550 is 55245001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100542551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4047 + ... + 14746.

It is an arithmetic number, because the mean of its divisors is an integer number (7865289).

Almost surely, 2^100542550 is an apocalyptic number.

100542550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100542550 is a deficient number, since it is larger than the sum of its proper divisors (88224386).

100542550 is a wasteful number, since it uses less digits than its factorization.

100542550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18912 (or 18907 counting only the distinct ones).

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

The square root of 100542550 is about 10027.0908044158. The cubic root of 100542550 is about 464.9968011496.

Adding to 100542550 its reverse (55245001), we get a palindrome (155787551).

The spelling of 100542550 in words is "one hundred million, five hundred forty-two thousand, five hundred fifty".