491925 has 24 divisors (see below), whose sum is σ = 930496. Its totient is φ = 224640.

The previous prime is 491923. The next prime is 491951. The reversal of 491925 is 529194.

It is a happy number.

It is not a de Polignac number, because 491925 - 2¹ = 491923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 491892 and 491901.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 491925.

It is not an unprimeable number, because it can be changed into a prime (491923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57 + ... + 993.

2⁴⁹¹⁹²⁵ is an apocalyptic number.

It is an amenable number.

491925 is a deficient number, since it is larger than the sum of its proper divisors (438571).

491925 is a wasteful number, since it uses less digits than its factorization.

491925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957 (or 952 counting only the distinct ones).

The product of its digits is 3240, while the sum is 30.

The square root of 491925 is about 701.3736521997. The cubic root of 491925 is about 78.9404561200.

The spelling of 491925 in words is "four hundred ninety-one thousand, nine hundred twenty-five".