225577797 has 4 divisors (see below), whose sum is σ = 300770400. Its totient is φ = 150385196.

The previous prime is 225577787. The next prime is 225577799. The reversal of 225577797 is 797775522.

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 225577797 - 2⁶ = 225577733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225577799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37596297 + ... + 37596302.

It is an arithmetic number, because the mean of its divisors is an integer number (75192600).

Almost surely, 2^225577797 is an apocalyptic number.

It is an amenable number.

225577797 is a deficient number, since it is larger than the sum of its proper divisors (75192603).

225577797 is an equidigital number, since it uses as much as digits as its factorization.

225577797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75192602.

The product of its digits is 2160900, while the sum is 51.

The square root of 225577797 is about 15019.2475510593. The cubic root of 225577797 is about 608.7403883195.

The spelling of 225577797 in words is "two hundred twenty-five million, five hundred seventy-seven thousand, seven hundred ninety-seven".