225021335 has 16 divisors (see below), whose sum is σ = 336655872. Its totient is φ = 140272800.

The previous prime is 225021331. The next prime is 225021341. The reversal of 225021335 is 533120522.

It is not a de Polignac number, because 225021335 - 2² = 225021331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225021335.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225021331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291851 + ... + 292620.

It is an arithmetic number, because the mean of its divisors is an integer number (21040992).

Almost surely, 2^225021335 is an apocalyptic number.

225021335 is a deficient number, since it is larger than the sum of its proper divisors (111634537).

225021335 is a wasteful number, since it uses less digits than its factorization.

225021335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584494.

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

The square root of 225021335 is about 15000.7111498089. The cubic root of 225021335 is about 608.2394232134.

Adding to 225021335 its reverse (533120522), we get a palindrome (758141857).

The spelling of 225021335 in words is "two hundred twenty-five million, twenty-one thousand, three hundred thirty-five".