20543525004 has 48 divisors (see below), whose sum is σ = 48099421440. Its totient is φ = 6824381760.

The previous prime is 20543525003. The next prime is 20543525011. The reversal of 20543525004 is 40052534502.

It is not an unprimeable number, because it can be changed into a prime (20543525003) 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, 4821427 + ... + 4825685.

It is an arithmetic number, because the mean of its divisors is an integer number (1002071280).

Almost surely, 2^20543525004 is an apocalyptic number.

It is an amenable number.

20543525004 is an abundant number, since it is smaller than the sum of its proper divisors (27555896436).

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

20543525004 is a wasteful number, since it uses less digits than its factorization.

20543525004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5550 (or 5548 counting only the distinct ones).

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

The spelling of 20543525004 in words is "twenty billion, five hundred forty-three million, five hundred twenty-five thousand, four".