102550005 has 24 divisors (see below), whose sum is σ = 181539072. Its totient is φ = 53528544.

The previous prime is 102549959. The next prime is 102550027. The reversal of 102550005 is 500055201.

It is not a de Polignac number, because 102550005 - 2⁷ = 102549877 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 102550005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22129 + ... + 26358.

It is an arithmetic number, because the mean of its divisors is an integer number (7564128).

Almost surely, 2^102550005 is an apocalyptic number.

102550005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102550005 is a deficient number, since it is larger than the sum of its proper divisors (78989067).

102550005 is a wasteful number, since it uses less digits than its factorization.

102550005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48545 (or 48542 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 102550005 is about 10126.6976354585. The cubic root of 102550005 is about 468.0711731553.

The spelling of 102550005 in words is "one hundred two million, five hundred fifty thousand, five".