425564 has 6 divisors (see below), whose sum is σ = 744744. Its totient is φ = 212780.

The previous prime is 425563. The next prime is 425591. The reversal of 425564 is 465524.

It is a super-2 number, since 2×425564² = 362209436192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53192 + ... + 53199.

It is an arithmetic number, because the mean of its divisors is an integer number (124124).

2⁴²⁵⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

425564 is a deficient number, since it is larger than the sum of its proper divisors (319180).

425564 is a wasteful number, since it uses less digits than its factorization.

425564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106395 (or 106393 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 425564 is about 652.3526653582. The cubic root of 425564 is about 75.2179732956.

It can be divided in two parts, 425 and 564, that added together give a palindrome (989).

The spelling of 425564 in words is "four hundred twenty-five thousand, five hundred sixty-four".