2291925 has 12 divisors (see below), whose sum is σ = 3789440. Its totient is φ = 1222320.

The previous prime is 2291921. The next prime is 2291929. The reversal of 2291925 is 5291922.

It is an interprime number because it is at equal distance from previous prime (2291921) and next prime (2291929).

It is not a de Polignac number, because 2291925 - 2² = 2291921 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2291892 and 2291901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15205 + ... + 15354.

2^2291925 is an apocalyptic number.

2291925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2291925 is a deficient number, since it is larger than the sum of its proper divisors (1497515).

2291925 is a wasteful number, since it uses less digits than its factorization.

2291925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30572 (or 30567 counting only the distinct ones).

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

The square root of 2291925 is about 1513.9104993361. The cubic root of 2291925 is about 131.8459520637.

The spelling of 2291925 in words is "two million, two hundred ninety-one thousand, nine hundred twenty-five".