225175251 has 64 divisors (see below), whose sum is σ = 387763200. Its totient is φ = 113135616.

The previous prime is 225175231. The next prime is 225175253. The reversal of 225175251 is 152571522.

It is not a de Polignac number, because 225175251 - 2⁷ = 225175123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225175253) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 603501 + ... + 603873.

It is an arithmetic number, because the mean of its divisors is an integer number (6058800).

Almost surely, 2^225175251 is an apocalyptic number.

225175251 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

225175251 is a deficient number, since it is larger than the sum of its proper divisors (162587949).

225175251 is a wasteful number, since it uses less digits than its factorization.

225175251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508.

The product of its digits is 7000, while the sum is 30.

The square root of 225175251 is about 15005.8405629275. The cubic root of 225175251 is about 608.3780714622.

The spelling of 225175251 in words is "two hundred twenty-five million, one hundred seventy-five thousand, two hundred fifty-one".