225394629 has 4 divisors (see below), whose sum is σ = 300526176. Its totient is φ = 150263084.

The previous prime is 225394627. The next prime is 225394643. The reversal of 225394629 is 926493522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225394629 - 2¹ = 225394627 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225394621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37565769 + ... + 37565774.

It is an arithmetic number, because the mean of its divisors is an integer number (75131544).

Almost surely, 2^225394629 is an apocalyptic number.

It is an amenable number.

225394629 is a deficient number, since it is larger than the sum of its proper divisors (75131547).

225394629 is an equidigital number, since it uses as much as digits as its factorization.

225394629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75131546.

The product of its digits is 233280, while the sum is 42.

The square root of 225394629 is about 15013.1485371990. The cubic root of 225394629 is about 608.5755790250.

The spelling of 225394629 in words is "two hundred twenty-five million, three hundred ninety-four thousand, six hundred twenty-nine".