825794251 has 4 divisors (see below), whose sum is σ = 825954712. Its totient is φ = 825633792.

The previous prime is 825794239. The next prime is 825794293. The reversal of 825794251 is 152497528.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 825794251 - 2¹¹ = 825792203 is a prime.

It is a super-2 number, since 2×825794251² = 1363872289969302002, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 825794198 and 825794207.

It is not an unprimeable number, because it can be changed into a prime (825794201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72246 + ... + 82891.

It is an arithmetic number, because the mean of its divisors is an integer number (206488678).

Almost surely, 2^825794251 is an apocalyptic number.

825794251 is a deficient number, since it is larger than the sum of its proper divisors (160461).

825794251 is a wasteful number, since it uses less digits than its factorization.

825794251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160460.

The product of its digits is 201600, while the sum is 43.

The square root of 825794251 is about 28736.6360418195. The cubic root of 825794251 is about 938.1896085465.

The spelling of 825794251 in words is "eight hundred twenty-five million, seven hundred ninety-four thousand, two hundred fifty-one".