425261 has 4 divisors (see below), whose sum is σ = 427392. Its totient is φ = 423132.

The previous prime is 425251. The next prime is 425273. The reversal of 425261 is 162524.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 425261 - 2⁶ = 425197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 731 + ... + 1176.

It is an arithmetic number, because the mean of its divisors is an integer number (106848).

2⁴²⁵²⁶¹ is an apocalyptic number.

It is an amenable number.

425261 is a deficient number, since it is larger than the sum of its proper divisors (2131).

425261 is a wasteful number, since it uses less digits than its factorization.

425261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130.

The product of its digits is 480, while the sum is 20.

The square root of 425261 is about 652.1203876586. The cubic root of 425261 is about 75.2001174172.

Adding to 425261 its reverse (162524), we get a palindrome (587785).

It can be divided in two parts, 425 and 261, that added together give a palindrome (686).

The spelling of 425261 in words is "four hundred twenty-five thousand, two hundred sixty-one".