425662161 has 8 divisors (see below), whose sum is σ = 569758944. Its totient is φ = 282670080.

The previous prime is 425662141. The next prime is 425662207. The reversal of 425662161 is 161266524.

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

It is not a de Polignac number, because 425662161 - 2⁵ = 425662129 is a prime.

It is a super-4 number, since 4×425662161⁴ (a number of 36 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (425662121) 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, 275275 + ... + 276816.

It is an arithmetic number, because the mean of its divisors is an integer number (71219868).

Almost surely, 2^425662161 is an apocalyptic number.

It is an amenable number.

425662161 is a deficient number, since it is larger than the sum of its proper divisors (144096783).

425662161 is a wasteful number, since it uses less digits than its factorization.

425662161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552351.

The product of its digits is 17280, while the sum is 33.

The square root of 425662161 is about 20631.5816407759. The cubic root of 425662161 is about 752.2375613425.

The spelling of 425662161 in words is "four hundred twenty-five million, six hundred sixty-two thousand, one hundred sixty-one".