425731013 has 4 divisors (see below), whose sum is σ = 425850048. Its totient is φ = 425611980.

The previous prime is 425730997. The next prime is 425731021. The reversal of 425731013 is 310137524.

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 425731013 - 2⁴ = 425730997 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 (425731073) 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, 53981 + ... + 61362.

It is an arithmetic number, because the mean of its divisors is an integer number (106462512).

Almost surely, 2^425731013 is an apocalyptic number.

It is an amenable number.

425731013 is a deficient number, since it is larger than the sum of its proper divisors (119035).

425731013 is a wasteful number, since it uses less digits than its factorization.

425731013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119034.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 425731013 is about 20633.2501802309. The cubic root of 425731013 is about 752.2781179725.

Adding to 425731013 its reverse (310137524), we get a palindrome (735868537).

The spelling of 425731013 in words is "four hundred twenty-five million, seven hundred thirty-one thousand, thirteen".