225515135 has 8 divisors (see below), whose sum is σ = 270962496. Its totient is φ = 180182560.

The previous prime is 225515113. The next prime is 225515137. The reversal of 225515135 is 531515522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225515135 - 2⁸ = 225514879 is a prime.

It is a super-2 number, since 2×225515135² = 101714152228136450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225515098 and 225515107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225515137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24311 + ... + 32280.

It is an arithmetic number, because the mean of its divisors is an integer number (33870312).

Almost surely, 2^225515135 is an apocalyptic number.

225515135 is a deficient number, since it is larger than the sum of its proper divisors (45447361).

225515135 is an equidigital number, since it uses as much as digits as its factorization.

225515135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57393.

The product of its digits is 7500, while the sum is 29.

The square root of 225515135 is about 15017.1613496027. The cubic root of 225515135 is about 608.6840168986.

The spelling of 225515135 in words is "two hundred twenty-five million, five hundred fifteen thousand, one hundred thirty-five".