225020404401 has 32 divisors (see below), whose sum is σ = 340169303040. Its totient is φ = 131163810624.

The previous prime is 225020404397. The next prime is 225020404451. The reversal of 225020404401 is 104404020522.

It is a happy number.

It is not a de Polignac number, because 225020404401 - 2² = 225020404397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225020404451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5033590 + ... + 5078096.

It is an arithmetic number, because the mean of its divisors is an integer number (10630290720).

Almost surely, 2^225020404401 is an apocalyptic number.

It is an amenable number.

225020404401 is a deficient number, since it is larger than the sum of its proper divisors (115148898639).

225020404401 is a wasteful number, since it uses less digits than its factorization.

225020404401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51365.

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 225020404401 its reverse (104404020522), we get a palindrome (329424424923).

The spelling of 225020404401 in words is "two hundred twenty-five billion, twenty million, four hundred four thousand, four hundred one".