220525313 has 4 divisors (see below), whose sum is σ = 220567620. Its totient is φ = 220483008.

The previous prime is 220525297. The next prime is 220525321. The reversal of 220525313 is 313525022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313525022 = 2 ⋅156762511.

It can be written as a sum of positive squares in 2 ways, for example, as 37112464 + 183412849 = 6092^2 + 13543^2 .

It is a cyclic number.

It is not a de Polignac number, because 220525313 - 2⁴ = 220525297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220525013) 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, 12020 + ... + 24197.

It is an arithmetic number, because the mean of its divisors is an integer number (55141905).

Almost surely, 2^220525313 is an apocalyptic number.

It is an amenable number.

220525313 is a deficient number, since it is larger than the sum of its proper divisors (42307).

220525313 is an equidigital number, since it uses as much as digits as its factorization.

220525313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42306.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 220525313 is about 14850.0947135027. The cubic root of 220525313 is about 604.1611788980.

The spelling of 220525313 in words is "two hundred twenty million, five hundred twenty-five thousand, three hundred thirteen".