20520050443535 has 32 divisors (see below), whose sum is σ = 25103790302400. Its totient is φ = 16098495823872.

The previous prime is 20520050443531. The next prime is 20520050443553. The reversal of 20520050443535 is 53534405002502.

It is a cyclic number.

It is not a de Polignac number, because 20520050443535 - 2² = 20520050443531 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20520050443531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146032991 + ... + 146173439.

It is an arithmetic number, because the mean of its divisors is an integer number (784493446950).

Almost surely, 2^{20520050443535} is an apocalyptic number.

20520050443535 is a deficient number, since it is larger than the sum of its proper divisors (4583739858865).

20520050443535 is a wasteful number, since it uses less digits than its factorization.

20520050443535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142475.

The product of its (nonzero) digits is 360000, while the sum is 38.

The spelling of 20520050443535 in words is "twenty trillion, five hundred twenty billion, fifty million, four hundred forty-three thousand, five hundred thirty-five".