20545253004 has 48 divisors (see below), whose sum is σ = 48472002656. Its totient is φ = 6772377600.

The previous prime is 20545252991. The next prime is 20545253009. The reversal of 20545253004 is 40035254502.

It is not an unprimeable number, because it can be changed into a prime (20545253009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1601094 + ... + 1613874.

Almost surely, 2^20545253004 is an apocalyptic number.

It is an amenable number.

20545253004 is an abundant number, since it is smaller than the sum of its proper divisors (27926749652).

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

20545253004 is a wasteful number, since it uses less digits than its factorization.

20545253004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14266 (or 14264 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The spelling of 20545253004 in words is "twenty billion, five hundred forty-five million, two hundred fifty-three thousand, four".