20540022501 has 8 divisors (see below), whose sum is σ = 28270138624. Its totient is φ = 13251627360.

The previous prime is 20540022497. The next prime is 20540022539. The reversal of 20540022501 is 10522004502.

It is a happy number.

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

It is not a de Polignac number, because 20540022501 - 2² = 20540022497 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 (20540022571) 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, 110430136 + ... + 110430321.

It is an arithmetic number, because the mean of its divisors is an integer number (3533767328).

Almost surely, 2^20540022501 is an apocalyptic number.

It is an amenable number.

20540022501 is a deficient number, since it is larger than the sum of its proper divisors (7730116123).

20540022501 is a wasteful number, since it uses less digits than its factorization.

20540022501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220860491.

The product of its (nonzero) digits is 800, while the sum is 21.

The spelling of 20540022501 in words is "twenty billion, five hundred forty million, twenty-two thousand, five hundred one".