825171465 has 8 divisors (see below), whose sum is σ = 1320274368. Its totient is φ = 440091440.

The previous prime is 825171427. The next prime is 825171491. The reversal of 825171465 is 564171528.

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

It is not a de Polignac number, because 825171465 - 2⁶ = 825171401 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27505701 + ... + 27505730.

It is an arithmetic number, because the mean of its divisors is an integer number (165034296).

Almost surely, 2^825171465 is an apocalyptic number.

It is an amenable number.

825171465 is a deficient number, since it is larger than the sum of its proper divisors (495102903).

825171465 is a wasteful number, since it uses less digits than its factorization.

825171465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55011439.

The product of its digits is 67200, while the sum is 39.

The square root of 825171465 is about 28725.7979001454. The cubic root of 825171465 is about 937.9536989767.

The spelling of 825171465 in words is "eight hundred twenty-five million, one hundred seventy-one thousand, four hundred sixty-five".