825740507 has 16 divisors (see below), whose sum is σ = 906409440. Its totient is φ = 749035008.

The previous prime is 825740491. The next prime is 825740557. The reversal of 825740507 is 705047528.

It is a cyclic number.

It is not a de Polignac number, because 825740507 - 2⁴ = 825740491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (825740557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61169 + ... + 73437.

It is an arithmetic number, because the mean of its divisors is an integer number (56650590).

Almost surely, 2^825740507 is an apocalyptic number.

825740507 is a deficient number, since it is larger than the sum of its proper divisors (80668933).

825740507 is a wasteful number, since it uses less digits than its factorization.

825740507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12430.

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 825740507 is about 28735.7009136718. The cubic root of 825740507 is about 938.1692551489.

The spelling of 825740507 in words is "eight hundred twenty-five million, seven hundred forty thousand, five hundred seven".