425528817 has 32 divisors (see below), whose sum is σ = 665736192. Its totient is φ = 236706624.

The previous prime is 425528813. The next prime is 425528837. The reversal of 425528817 is 718825524.

It is not a de Polignac number, because 425528817 - 2² = 425528813 is a prime.

It is not an unprimeable number, because it can be changed into a prime (425528813) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 357898 + ... + 359084.

It is an arithmetic number, because the mean of its divisors is an integer number (20804256).

Almost surely, 2^425528817 is an apocalyptic number.

It is an amenable number.

425528817 is a deficient number, since it is larger than the sum of its proper divisors (240207375).

425528817 is a wasteful number, since it uses less digits than its factorization.

425528817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637.

The product of its digits is 179200, while the sum is 42.

The square root of 425528817 is about 20628.3498370568. The cubic root of 425528817 is about 752.1590038616.

The spelling of 425528817 in words is "four hundred twenty-five million, five hundred twenty-eight thousand, eight hundred seventeen".