20525201043 has 8 divisors (see below), whose sum is σ = 27375534528. Its totient is φ = 13679167464.

The previous prime is 20525201033. The next prime is 20525201083. The reversal of 20525201043 is 34010252502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20525201043 - 2⁴ = 20525201027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20525201033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1063821 + ... + 1082942.

It is an arithmetic number, because the mean of its divisors is an integer number (3421941816).

Almost surely, 2^20525201043 is an apocalyptic number.

20525201043 is a deficient number, since it is larger than the sum of its proper divisors (6850333485).

20525201043 is a wasteful number, since it uses less digits than its factorization.

20525201043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149953.

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

Adding to 20525201043 its reverse (34010252502), we get a palindrome (54535453545).

The spelling of 20525201043 in words is "twenty billion, five hundred twenty-five million, two hundred one thousand, forty-three".