825425001 has 6 divisors (see below), whose sum is σ = 1192280570. Its totient is φ = 550283328.

The previous prime is 825424981. The next prime is 825425009. The reversal of 825425001 is 100524528.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 532501776 + 292923225 = 23076^2 + 17115^2 .

It is not a de Polignac number, because 825425001 - 2⁵ = 825424969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (825425009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45856936 + ... + 45856953.

Almost surely, 2^825425001 is an apocalyptic number.

It is an amenable number.

825425001 is a deficient number, since it is larger than the sum of its proper divisors (366855569).

825425001 is a wasteful number, since it uses less digits than its factorization.

825425001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91713895 (or 91713892 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 825425001 is about 28730.2105979055. The cubic root of 825425001 is about 938.0497520146.

Adding to 825425001 its reverse (100524528), we get a palindrome (925949529).

The spelling of 825425001 in words is "eight hundred twenty-five million, four hundred twenty-five thousand, one".