825255949 has 4 divisors (see below), whose sum is σ = 943149664. Its totient is φ = 707362236.

The previous prime is 825255947. The next prime is 825255953. The reversal of 825255949 is 949552528.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 825255949 - 2¹ = 825255947 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 (825255941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58946847 + ... + 58946860.

It is an arithmetic number, because the mean of its divisors is an integer number (235787416).

Almost surely, 2^825255949 is an apocalyptic number.

It is an amenable number.

825255949 is a deficient number, since it is larger than the sum of its proper divisors (117893715).

825255949 is a wasteful number, since it uses less digits than its factorization.

825255949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117893714.

The product of its digits is 1296000, while the sum is 49.

The square root of 825255949 is about 28727.2683873702. The cubic root of 825255949 is about 937.9857082336.

The spelling of 825255949 in words is "eight hundred twenty-five million, two hundred fifty-five thousand, nine hundred forty-nine".