225488077 has 4 divisors (see below), whose sum is σ = 225532636. Its totient is φ = 225443520.

The previous prime is 225488071. The next prime is 225488099. The reversal of 225488077 is 770884522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 106110601 + 119377476 = 10301^2 + 10926^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225488077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225488071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13548 + ... + 25189.

It is an arithmetic number, because the mean of its divisors is an integer number (56383159).

Almost surely, 2^225488077 is an apocalyptic number.

It is an amenable number.

225488077 is a deficient number, since it is larger than the sum of its proper divisors (44559).

225488077 is an equidigital number, since it uses as much as digits as its factorization.

225488077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44558.

The product of its (nonzero) digits is 250880, while the sum is 43.

The square root of 225488077 is about 15016.2604199581. The cubic root of 225488077 is about 608.6596719977.

It can be divided in two parts, 22548 and 8077, that added together give a square (30625 = 175²).

The spelling of 225488077 in words is "two hundred twenty-five million, four hundred eighty-eight thousand, seventy-seven".