225238877 has 4 divisors (see below), whose sum is σ = 225419040. Its totient is φ = 225058716.

The previous prime is 225238861. The next prime is 225238891. The reversal of 225238877 is 778832522.

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 225238877 - 2⁴ = 225238861 is a prime.

It is a super-2 number, since 2×225238877² = 101465103424442258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225238807) 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, 88193 + ... + 90710.

It is an arithmetic number, because the mean of its divisors is an integer number (56354760).

Almost surely, 2^225238877 is an apocalyptic number.

It is an amenable number.

225238877 is a deficient number, since it is larger than the sum of its proper divisors (180163).

225238877 is a wasteful number, since it uses less digits than its factorization.

225238877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180162.

The product of its digits is 376320, while the sum is 44.

The square root of 225238877 is about 15007.9604543722. The cubic root of 225238877 is about 608.4353676018.

The spelling of 225238877 in words is "two hundred twenty-five million, two hundred thirty-eight thousand, eight hundred seventy-seven".