20524553201 has 4 divisors (see below), whose sum is σ = 20531400000. Its totient is φ = 20517706404.

The previous prime is 20524553183. The next prime is 20524553207. The reversal of 20524553201 is 10235542502.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10235542502 = 2 ⋅5117771251.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20524553201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20524553207) 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, 3418901 + ... + 3424898.

It is an arithmetic number, because the mean of its divisors is an integer number (5132850000).

Almost surely, 2^20524553201 is an apocalyptic number.

It is an amenable number.

20524553201 is a deficient number, since it is larger than the sum of its proper divisors (6846799).

20524553201 is an equidigital number, since it uses as much as digits as its factorization.

20524553201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6846798.

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 20524553201 in words is "twenty billion, five hundred twenty-four million, five hundred fifty-three thousand, two hundred one".