220525020853 has 4 divisors (see below), whose sum is σ = 222005054700. Its totient is φ = 219044987008.

The previous prime is 220525020829. The next prime is 220525020871. The reversal of 220525020853 is 358020525022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80666224324 + 139858796529 = 284018^2 + 373977^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220525020853 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 (220525020253) 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, 740016700 + ... + 740016997.

It is an arithmetic number, because the mean of its divisors is an integer number (55501263675).

Almost surely, 2^220525020853 is an apocalyptic number.

It is an amenable number.

220525020853 is a deficient number, since it is larger than the sum of its proper divisors (1480033847).

220525020853 is a wasteful number, since it uses less digits than its factorization.

220525020853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480033846.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 220525020853 its reverse (358020525022), we get a palindrome (578545545875).

The spelling of 220525020853 in words is "two hundred twenty billion, five hundred twenty-five million, twenty thousand, eight hundred fifty-three".