20302253000 has 64 divisors (see below), whose sum is σ = 47564964720. Its totient is φ = 8111040000.

The previous prime is 20302252991. The next prime is 20302253003. The reversal of 20302253000 is 35220302.

It can be written as a sum of positive squares in 8 ways, for example, as 30758116 + 20271494884 = 5546^2 + 142378^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20302253000.

It is not an unprimeable number, because it can be changed into a prime (20302253003) 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, 841100 + ... + 864900.

Almost surely, 2^20302253000 is an apocalyptic number.

20302253000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20302253000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23782482360).

20302253000 is an abundant number, since it is smaller than the sum of its proper divisors (27262711720).

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

20302253000 is a wasteful number, since it uses less digits than its factorization.

20302253000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24675 (or 24661 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 17.

Adding to 20302253000 its reverse (35220302), we get a palindrome (20337473302).

The spelling of 20302253000 in words is "twenty billion, three hundred two million, two hundred fifty-three thousand".