20432253541 has 16 divisors (see below), whose sum is σ = 23943034368. Its totient is φ = 17071110000.

The previous prime is 20432253529. The next prime is 20432253557. The reversal of 20432253541 is 14535223402.

It is not a de Polignac number, because 20432253541 - 2¹¹ = 20432251493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20432253521) 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, 78666 + ... + 216916.

It is an arithmetic number, because the mean of its divisors is an integer number (1496439648).

Almost surely, 2^20432253541 is an apocalyptic number.

It is an amenable number.

20432253541 is a deficient number, since it is larger than the sum of its proper divisors (3510780827).

20432253541 is a wasteful number, since it uses less digits than its factorization.

20432253541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138792.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 20432253541 its reverse (14535223402), we get a palindrome (34967476943).

The spelling of 20432253541 in words is "twenty billion, four hundred thirty-two million, two hundred fifty-three thousand, five hundred forty-one".