825011816 has 8 divisors (see below), whose sum is σ = 1546897170. Its totient is φ = 412505904.

The previous prime is 825011813. The next prime is 825011827. The reversal of 825011816 is 618110528.

It can be written as a sum of positive squares in only one way, i.e., 821051716 + 3960100 = 28654^2 + 1990^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (825011813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51563231 + ... + 51563246.

Almost surely, 2^825011816 is an apocalyptic number.

It is an amenable number.

825011816 is a deficient number, since it is larger than the sum of its proper divisors (721885354).

825011816 is a wasteful number, since it uses less digits than its factorization.

825011816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103126483 (or 103126479 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 32.

The square root of 825011816 is about 28723.0189221119. The cubic root of 825011816 is about 937.8932052755.

The spelling of 825011816 in words is "eight hundred twenty-five million, eleven thousand, eight hundred sixteen".