225145532401 has 2 divisors, whose sum is σ = 225145532402. Its totient is φ = 225145532400.

The previous prime is 225145532383. The next prime is 225145532429. The reversal of 225145532401 is 104235541522.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184363749376 + 40781783025 = 429376^2 + 201945^2 .

It is a cyclic number.

It is not a de Polignac number, because 225145532401 - 2¹¹ = 225145530353 is a prime.

It is not a weakly prime, because it can be changed into another prime (225145532201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112572766200 + 112572766201.

It is an arithmetic number, because the mean of its divisors is an integer number (112572766201).

Almost surely, 2^225145532401 is an apocalyptic number.

It is an amenable number.

225145532401 is a deficient number, since it is larger than the sum of its proper divisors (1).

225145532401 is an equidigital number, since it uses as much as digits as its factorization.

225145532401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 225145532401 in words is "two hundred twenty-five billion, one hundred forty-five million, five hundred thirty-two thousand, four hundred one".