20041532501 has 4 divisors (see below), whose sum is σ = 20282996832. Its totient is φ = 19800068172.

The previous prime is 20041532473. The next prime is 20041532573. The reversal of 20041532501 is 10523514002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20041532501 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 (20041532801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120732041 + ... + 120732206.

It is an arithmetic number, because the mean of its divisors is an integer number (5070749208).

Almost surely, 2^20041532501 is an apocalyptic number.

It is an amenable number.

20041532501 is a deficient number, since it is larger than the sum of its proper divisors (241464331).

20041532501 is an equidigital number, since it uses as much as digits as its factorization.

20041532501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241464330.

The product of its (nonzero) digits is 1200, while the sum is 23.

The spelling of 20041532501 in words is "twenty billion, forty-one million, five hundred thirty-two thousand, five hundred one".