2225408161 has 8 divisors (see below), whose sum is σ = 2264925224. Its totient is φ = 2185989120.

The previous prime is 2225408153. The next prime is 2225408183. The reversal of 2225408161 is 1618045222.

It can be written as a sum of positive squares in 4 ways, for example, as 170145936 + 2055262225 = 13044^2 + 45335^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2225408161 - 2³ = 2225408153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2225408561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22081 + ... + 70273.

It is an arithmetic number, because the mean of its divisors is an integer number (283115653).

Almost surely, 2^2225408161 is an apocalyptic number.

It is an amenable number.

2225408161 is a deficient number, since it is larger than the sum of its proper divisors (39517063).

2225408161 is an equidigital number, since it uses as much as digits as its factorization.

2225408161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49011.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 2225408161 is about 47174.2319598316. The cubic root of 2225408161 is about 1305.5792090328.

The spelling of 2225408161 in words is "two billion, two hundred twenty-five million, four hundred eight thousand, one hundred sixty-one".