20524532155 has 8 divisors (see below), whose sum is σ = 24883350912. Its totient is φ = 16250350848.

The previous prime is 20524532153. The next prime is 20524532179. The reversal of 20524532155 is 55123542502.

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

It is a cyclic number.

It is not a de Polignac number, because 20524532155 - 2¹ = 20524532153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20524532155.

It is not an unprimeable number, because it can be changed into a prime (20524532153) 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, 21158827 + ... + 21159796.

It is an arithmetic number, because the mean of its divisors is an integer number (3110418864).

Almost surely, 2^20524532155 is an apocalyptic number.

20524532155 is a deficient number, since it is larger than the sum of its proper divisors (4358818757).

20524532155 is an equidigital number, since it uses as much as digits as its factorization.

20524532155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42318725.

The product of its (nonzero) digits is 60000, while the sum is 34.

The spelling of 20524532155 in words is "twenty billion, five hundred twenty-four million, five hundred thirty-two thousand, one hundred fifty-five".