20525531541 has 8 divisors (see below), whose sum is σ = 27371118720. Its totient is φ = 13681816032.

The previous prime is 20525531531. The next prime is 20525531569. The reversal of 20525531541 is 14513552502.

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

It is not a de Polignac number, because 20525531541 - 2¹³ = 20525523349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20525531501) 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 7 ways as a sum of consecutive naturals, for example, 442125 + ... + 486338.

It is an arithmetic number, because the mean of its divisors is an integer number (3421389840).

Almost surely, 2^20525531541 is an apocalyptic number.

It is an amenable number.

20525531541 is a deficient number, since it is larger than the sum of its proper divisors (6845587179).

20525531541 is an equidigital number, since it uses as much as digits as its factorization.

20525531541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935835.

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 20525531541 in words is "twenty billion, five hundred twenty-five million, five hundred thirty-one thousand, five hundred forty-one".