225409340709 has 48 divisors (see below), whose sum is σ = 392104327680. Its totient is φ = 121896640800.

The previous prime is 225409340699. The next prime is 225409340719. The reversal of 225409340709 is 907043904522.

225409340709 is a `hidden beast` number, since 2 + 2 + 540 + 9 + 34 + 0 + 70 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (225409340699) and next prime (225409340719).

It is not a de Polignac number, because 225409340709 - 2¹⁶ = 225409275173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225409340719) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1034134 + ... + 1232984.

It is an arithmetic number, because the mean of its divisors is an integer number (8168840160).

Almost surely, 2^225409340709 is an apocalyptic number.

It is an amenable number.

225409340709 is a deficient number, since it is larger than the sum of its proper divisors (166694986971).

225409340709 is a wasteful number, since it uses less digits than its factorization.

225409340709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199830 (or 199827 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 225409340709 in words is "two hundred twenty-five billion, four hundred nine million, three hundred forty thousand, seven hundred nine".