425544 has 64 divisors (see below), whose sum is σ = 1296000. Its totient is φ = 113664.

The previous prime is 425533. The next prime is 425549. The reversal of 425544 is 445524.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (425549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2782 + ... + 2930.

It is an arithmetic number, because the mean of its divisors is an integer number (20250).

2⁴²⁵⁵⁴⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (648000).

425544 is an abundant number, since it is smaller than the sum of its proper divisors (870456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425544 is a wasteful number, since it uses less digits than its factorization.

425544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 178 counting only the distinct ones).

The product of its digits is 3200, while the sum is 24.

The square root of 425544 is about 652.3373360463. The cubic root of 425544 is about 75.2167949511.

It can be divided in two parts, 425 and 544, that added together give a palindrome (969).

The spelling of 425544 in words is "four hundred twenty-five thousand, five hundred forty-four".