825125501 has 4 divisors (see below), whose sum is σ = 825346272. Its totient is φ = 824904732.

The previous prime is 825125479. The next prime is 825125513. The reversal of 825125501 is 105521528.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-825125501 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 (825125551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104681 + ... + 112286.

It is an arithmetic number, because the mean of its divisors is an integer number (206336568).

Almost surely, 2^825125501 is an apocalyptic number.

It is an amenable number.

825125501 is a deficient number, since it is larger than the sum of its proper divisors (220771).

825125501 is a wasteful number, since it uses less digits than its factorization.

825125501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220770.

The product of its (nonzero) digits is 4000, while the sum is 29.

The square root of 825125501 is about 28724.9978416013. The cubic root of 825125501 is about 937.9362832411.

The spelling of 825125501 in words is "eight hundred twenty-five million, one hundred twenty-five thousand, five hundred one".