825471801 has 36 divisors (see below), whose sum is σ = 1497839616. Its totient is φ = 428812560.

The previous prime is 825471799. The next prime is 825471821. The reversal of 825471801 is 108174528.

It is not a de Polignac number, because 825471801 - 2¹ = 825471799 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (825471821) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 46521 + ... + 61766.

It is an arithmetic number, because the mean of its divisors is an integer number (41606656).

Almost surely, 2^825471801 is an apocalyptic number.

It is an amenable number.

825471801 is a deficient number, since it is larger than the sum of its proper divisors (672367815).

825471801 is a wasteful number, since it uses less digits than its factorization.

825471801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108322 (or 108308 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 825471801 is about 28731.0250600287. The cubic root of 825471801 is about 938.0674802146.

It can be divided in two parts, 82547 and 1801, that added together give a palindrome (84348).

The spelling of 825471801 in words is "eight hundred twenty-five million, four hundred seventy-one thousand, eight hundred one".