10021550250 has 32 divisors (see below), whose sum is σ = 25013791296. Its totient is φ = 2672413200.

The previous prime is 10021550221. The next prime is 10021550257. The reversal of 10021550250 is 5205512001.

It is not an unprimeable number, because it can be changed into a prime (10021550257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6680284 + ... + 6681783.

It is an arithmetic number, because the mean of its divisors is an integer number (781680978).

Almost surely, 2^10021550250 is an apocalyptic number.

10021550250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10021550250 is an abundant number, since it is smaller than the sum of its proper divisors (14992241046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10021550250 is a wasteful number, since it uses less digits than its factorization.

10021550250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13362087 (or 13362077 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The spelling of 10021550250 in words is "ten billion, twenty-one million, five hundred fifty thousand, two hundred fifty".