825156463 has 4 divisors (see below), whose sum is σ = 826682248. Its totient is φ = 823630680.

The previous prime is 825156457. The next prime is 825156473. The reversal of 825156463 is 364651528.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-825156463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825156473) 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, 762081 + ... + 763162.

It is an arithmetic number, because the mean of its divisors is an integer number (206670562).

Almost surely, 2^825156463 is an apocalyptic number.

825156463 is a deficient number, since it is larger than the sum of its proper divisors (1525785).

825156463 is a wasteful number, since it uses less digits than its factorization.

825156463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525784.

The product of its digits is 172800, while the sum is 40.

The square root of 825156463 is about 28725.5367747933. The cubic root of 825156463 is about 937.9480147979.

The spelling of 825156463 in words is "eight hundred twenty-five million, one hundred fifty-six thousand, four hundred sixty-three".