425570 has 8 divisors (see below), whose sum is σ = 766044. Its totient is φ = 170224.

The previous prime is 425563. The next prime is 425591. The reversal of 425570 is 75524.

It can be written as a sum of positive squares in 2 ways, for example, as 395641 + 29929 = 629^2 + 173^2 .

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

It is a super-2 number, since 2×425570² = 362219649800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21269 + ... + 21288.

2⁴²⁵⁵⁷⁰ is an apocalyptic number.

425570 is a deficient number, since it is larger than the sum of its proper divisors (340474).

425570 is a wasteful number, since it uses less digits than its factorization.

425570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42564.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 425570 is about 652.3572640816. The cubic root of 425570 is about 75.2183267918.

The spelling of 425570 in words is "four hundred twenty-five thousand, five hundred seventy".