100500551 has 2 divisors, whose sum is σ = 100500552. Its totient is φ = 100500550.

The previous prime is 100500539. The next prime is 100500559. The reversal of 100500551 is 155005001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100500551 - 2¹⁰ = 100499527 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100500559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50250275 + 50250276.

It is an arithmetic number, because the mean of its divisors is an integer number (50250276).

Almost surely, 2^100500551 is an apocalyptic number.

100500551 is a deficient number, since it is larger than the sum of its proper divisors (1).

100500551 is an equidigital number, since it uses as much as digits as its factorization.

100500551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125, while the sum is 17.

The square root of 100500551 is about 10024.9963092263. The cubic root of 100500551 is about 464.9320454133.

Adding to 100500551 its reverse (155005001), we get a palindrome (255505552).

The spelling of 100500551 in words is "one hundred million, five hundred thousand, five hundred fifty-one".