102250250 has 32 divisors (see below), whose sum is σ = 195049296. Its totient is φ = 40123200.

The previous prime is 102250219. The next prime is 102250271. The reversal of 102250250 is 52052201.

It can be written as a sum of positive squares in 8 ways, for example, as 8334769 + 93915481 = 2887^2 + 9691^2 .

It is a super-2 number, since 2×102250250² = 20910227250125000, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9392 + ... + 17108.

Almost surely, 2^102250250 is an apocalyptic number.

102250250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102250250 is a deficient number, since it is larger than the sum of its proper divisors (92799046).

102250250 is an equidigital number, since it uses as much as digits as its factorization.

102250250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7787 (or 7777 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 102250250 is about 10111.8865697752. The cubic root of 102250250 is about 467.6146686984.

The spelling of 102250250 in words is "one hundred two million, two hundred fifty thousand, two hundred fifty".