225204737 has 2 divisors, whose sum is σ = 225204738. Its totient is φ = 225204736.

The previous prime is 225204713. The next prime is 225204761. The reversal of 225204737 is 737402522.

It is a balanced prime because it is at equal distance from previous prime (225204713) and next prime (225204761).

It can be written as a sum of positive squares in only one way, i.e., 217828081 + 7376656 = 14759^2 + 2716^2 .

It is a cyclic number.

It is not a de Polignac number, because 225204737 - 2⁶ = 225204673 is a prime.

It is not a weakly prime, because it can be changed into another prime (225204767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112602368 + 112602369.

It is an arithmetic number, because the mean of its divisors is an integer number (112602369).

Almost surely, 2^225204737 is an apocalyptic number.

It is an amenable number.

225204737 is a deficient number, since it is larger than the sum of its proper divisors (1).

225204737 is an equidigital number, since it uses as much as digits as its factorization.

225204737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 225204737 is about 15006.8230148823. The cubic root of 225204737 is about 608.4046253764.

The spelling of 225204737 in words is "two hundred twenty-five million, two hundred four thousand, seven hundred thirty-seven".