225240429 has 16 divisors (see below), whose sum is σ = 325745280. Its totient is φ = 137879040.

The previous prime is 225240391. The next prime is 225240437. The reversal of 225240429 is 924042522.

It is not a de Polignac number, because 225240429 - 2¹¹ = 225238381 is a prime.

It is a super-2 number, since 2×225240429² = 101466501712208082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225240396 and 225240405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225240439) 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 15 ways as a sum of consecutive naturals, for example, 51769 + ... + 55950.

It is an arithmetic number, because the mean of its divisors is an integer number (20359080).

Almost surely, 2^225240429 is an apocalyptic number.

It is an amenable number.

225240429 is a deficient number, since it is larger than the sum of its proper divisors (100504851).

225240429 is a wasteful number, since it uses less digits than its factorization.

225240429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107780.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 225240429 is about 15008.0121601763. The cubic root of 225240429 is about 608.4367650656.

The spelling of 225240429 in words is "two hundred twenty-five million, two hundred forty thousand, four hundred twenty-nine".