825027765 has 16 divisors (see below), whose sum is σ = 1397694528. Its totient is φ = 414131456.

The previous prime is 825027737. The next prime is 825027773. The reversal of 825027765 is 567720528.

It is a cyclic number.

It is not a de Polignac number, because 825027765 - 2⁶ = 825027701 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1617447 + ... + 1617956.

It is an arithmetic number, because the mean of its divisors is an integer number (87355908).

Almost surely, 2^825027765 is an apocalyptic number.

825027765 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

825027765 is a deficient number, since it is larger than the sum of its proper divisors (572666763).

825027765 is a wasteful number, since it uses less digits than its factorization.

825027765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3235428.

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 825027765 is about 28723.2965552354. The cubic root of 825027765 is about 937.8992489717.

The spelling of 825027765 in words is "eight hundred twenty-five million, twenty-seven thousand, seven hundred sixty-five".