20245553304 has 64 divisors (see below), whose sum is σ = 53020362240. Its totient is φ = 6429941760.

The previous prime is 20245553299. The next prime is 20245553309. The reversal of 20245553304 is 40335554202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20245553299) and next prime (20245553309).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20245553309) 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, 70509 + ... + 213219.

It is an arithmetic number, because the mean of its divisors is an integer number (828443160).

Almost surely, 2^20245553304 is an apocalyptic number.

20245553304 is a gapful number since it is divisible by the number (24) 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 20245553304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26510181120).

20245553304 is an abundant number, since it is smaller than the sum of its proper divisors (32774808936).

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

20245553304 is a wasteful number, since it uses less digits than its factorization.

20245553304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143000 (or 142996 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 33.

The spelling of 20245553304 in words is "twenty billion, two hundred forty-five million, five hundred fifty-three thousand, three hundred four".