425475689 has 4 divisors (see below), whose sum is σ = 443974656. Its totient is φ = 406976724.

The previous prime is 425475653. The next prime is 425475697. The reversal of 425475689 is 986574524.

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 a de Polignac number, because none of the positive numbers 2^k-425475689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425475629) 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, 9249449 + ... + 9249494.

It is an arithmetic number, because the mean of its divisors is an integer number (110993664).

Almost surely, 2^425475689 is an apocalyptic number.

It is an amenable number.

425475689 is a deficient number, since it is larger than the sum of its proper divisors (18498967).

425475689 is a wasteful number, since it uses less digits than its factorization.

425475689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18498966.

The product of its digits is 2419200, while the sum is 50.

The square root of 425475689 is about 20627.0620544953. The cubic root of 425475689 is about 752.1276997798.

The spelling of 425475689 in words is "four hundred twenty-five million, four hundred seventy-five thousand, six hundred eighty-nine".