425023013 has 4 divisors (see below), whose sum is σ = 426381228. Its totient is φ = 423664800.

The previous prime is 425023007. The next prime is 425023031. The reversal of 425023013 is 310320524.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 220017889 + 205005124 = 14833^2 + 14318^2 .

It is a cyclic number.

It is not a de Polignac number, because 425023013 - 2¹² = 425018917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425023213) 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, 678638 + ... + 679263.

It is an arithmetic number, because the mean of its divisors is an integer number (106595307).

Almost surely, 2^425023013 is an apocalyptic number.

It is an amenable number.

425023013 is a deficient number, since it is larger than the sum of its proper divisors (1358215).

425023013 is a wasteful number, since it uses less digits than its factorization.

425023013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358214.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 425023013 is about 20616.0862677667. The cubic root of 425023013 is about 751.8608682590.

Adding to 425023013 its reverse (310320524), we get a palindrome (735343537).

The spelling of 425023013 in words is "four hundred twenty-five million, twenty-three thousand, thirteen".