825378497 has 8 divisors (see below), whose sum is σ = 831667200. Its totient is φ = 819100080.

The previous prime is 825378493. The next prime is 825378559. The reversal of 825378497 is 794873528.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 825378497 - 2² = 825378493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (825378493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246122 + ... + 249452.

It is an arithmetic number, because the mean of its divisors is an integer number (103958400).

Almost surely, 2^825378497 is an apocalyptic number.

It is an amenable number.

825378497 is a deficient number, since it is larger than the sum of its proper divisors (6288703).

825378497 is a wasteful number, since it uses less digits than its factorization.

825378497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5143.

The product of its digits is 3386880, while the sum is 53.

The square root of 825378497 is about 28729.4012642102. The cubic root of 825378497 is about 938.0321352778.

The spelling of 825378497 in words is "eight hundred twenty-five million, three hundred seventy-eight thousand, four hundred ninety-seven".