20231522250 has 64 divisors (see below), whose sum is σ = 52126903296. Its totient is φ = 5221032000.

The previous prime is 20231522249. The next prime is 20231522251. The reversal of 20231522250 is 5222513202.

It is an interprime number because it is at equal distance from previous prime (20231522249) and next prime (20231522251).

It is a self number, because there is not a number n which added to its sum of digits gives 20231522250.

It is not an unprimeable number, because it can be changed into a prime (20231522251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 411837 + ... + 458336.

It is an arithmetic number, because the mean of its divisors is an integer number (814482864).

Almost surely, 2^20231522250 is an apocalyptic number.

20231522250 is an abundant number, since it is smaller than the sum of its proper divisors (31895381046).

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

20231522250 is a wasteful number, since it uses less digits than its factorization.

20231522250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870224 (or 870214 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The spelling of 20231522250 in words is "twenty billion, two hundred thirty-one million, five hundred twenty-two thousand, two hundred fifty".