425203513 has 4 divisors (see below), whose sum is σ = 485946880. Its totient is φ = 364460148.

The previous prime is 425203459. The next prime is 425203529. The reversal of 425203513 is 315302524.

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 425203513 - 2¹³ = 425195321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425203573) 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, 30371673 + ... + 30371686.

It is an arithmetic number, because the mean of its divisors is an integer number (121486720).

Almost surely, 2^425203513 is an apocalyptic number.

It is an amenable number.

425203513 is a deficient number, since it is larger than the sum of its proper divisors (60743367).

425203513 is an equidigital number, since it uses as much as digits as its factorization.

425203513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60743366.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 425203513 is about 20620.4634525997. The cubic root of 425203513 is about 751.9672873436.

The spelling of 425203513 in words is "four hundred twenty-five million, two hundred three thousand, five hundred thirteen".