225412251 has 16 divisors (see below), whose sum is σ = 309306624. Its totient is φ = 145913184.

The previous prime is 225412249. The next prime is 225412261. The reversal of 225412251 is 152214522.

It is not a de Polignac number, because 225412251 - 2¹ = 225412249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225412261) 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, 60690 + ... + 64296.

It is an arithmetic number, because the mean of its divisors is an integer number (19331664).

Almost surely, 2^225412251 is an apocalyptic number.

225412251 is a deficient number, since it is larger than the sum of its proper divisors (83894373).

225412251 is a wasteful number, since it uses less digits than its factorization.

225412251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4210.

The product of its digits is 1600, while the sum is 24.

The square root of 225412251 is about 15013.7354112826. The cubic root of 225412251 is about 608.5914386744.

Adding to 225412251 its reverse (152214522), we get a palindrome (377626773).

The spelling of 225412251 in words is "two hundred twenty-five million, four hundred twelve thousand, two hundred fifty-one".