425438457 has 4 divisors (see below), whose sum is σ = 567251280. Its totient is φ = 283625636.

The previous prime is 425438449. The next prime is 425438459. The reversal of 425438457 is 754834524.

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 425438457 - 2³ = 425438449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (425438459) 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, 70906407 + ... + 70906412.

It is an arithmetic number, because the mean of its divisors is an integer number (141812820).

Almost surely, 2^425438457 is an apocalyptic number.

It is an amenable number.

425438457 is a deficient number, since it is larger than the sum of its proper divisors (141812823).

425438457 is a wasteful number, since it uses less digits than its factorization.

425438457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141812822.

The product of its digits is 537600, while the sum is 42.

The square root of 425438457 is about 20626.1595310421. The cubic root of 425438457 is about 752.1057603865.

The spelling of 425438457 in words is "four hundred twenty-five million, four hundred thirty-eight thousand, four hundred fifty-seven".