225020511 has 20 divisors (see below), whose sum is σ = 336605544. Its totient is φ = 149806800.

The previous prime is 225020507. The next prime is 225020539. The reversal of 225020511 is 115020522.

It is not a de Polignac number, because 225020511 - 2² = 225020507 is a prime.

It is a super-2 number, since 2×225020511² = 101268460741402242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225024511) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 77221 + ... + 80081.

Almost surely, 2^225020511 is an apocalyptic number.

225020511 is a deficient number, since it is larger than the sum of its proper divisors (111585033).

225020511 is an equidigital number, since it uses as much as digits as its factorization.

225020511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3844 (or 3835 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 225020511 is about 15000.6836844192. The cubic root of 225020511 is about 608.2386807802.

The spelling of 225020511 in words is "two hundred twenty-five million, twenty thousand, five hundred eleven".