225478309701 has 16 divisors (see below), whose sum is σ = 306767324160. Its totient is φ = 147283134960.

The previous prime is 225478309699. The next prime is 225478309717. The reversal of 225478309701 is 107903874522.

It is a happy number.

It is not a de Polignac number, because 225478309701 - 2¹ = 225478309699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225478309781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3600195 + ... + 3662288.

It is an arithmetic number, because the mean of its divisors is an integer number (19172957760).

Almost surely, 2^225478309701 is an apocalyptic number.

It is an amenable number.

225478309701 is a deficient number, since it is larger than the sum of its proper divisors (81289014459).

225478309701 is a wasteful number, since it uses less digits than its factorization.

225478309701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7262696.

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 225478309701 in words is "two hundred twenty-five billion, four hundred seventy-eight million, three hundred nine thousand, seven hundred one".