20452038931501 has 4 divisors (see below), whose sum is σ = 20493692779104. Its totient is φ = 20410385083900.

The previous prime is 20452038931463. The next prime is 20452038931507. The reversal of 20452038931501 is 10513983025402.

It is a happy number.

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 not a de Polignac number, because 20452038931501 - 2²¹ = 20452036834349 is a prime.

It is a super-2 number, since 2×20452038931501² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20452038931507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20826923065 + ... + 20826924046.

It is an arithmetic number, because the mean of its divisors is an integer number (5123423194776).

Almost surely, 2^{20452038931501} is an apocalyptic number.

It is an amenable number.

20452038931501 is a deficient number, since it is larger than the sum of its proper divisors (41653847603).

20452038931501 is an equidigital number, since it uses as much as digits as its factorization.

20452038931501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41653847602.

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 20452038931501 in words is "twenty trillion, four hundred fifty-two billion, thirty-eight million, nine hundred thirty-one thousand, five hundred one".