2815925 has 12 divisors (see below), whose sum is σ = 3990816. Its totient is φ = 1930800.

The previous prime is 2815903. The next prime is 2815927. The reversal of 2815925 is 5295182.

It is not a de Polignac number, because 2815925 - 2⁶ = 2815861 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2815891 and 2815900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2815927) 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, 7871 + ... + 8220.

It is an arithmetic number, because the mean of its divisors is an integer number (332568).

2^2815925 is an apocalyptic number.

2815925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2815925 is a deficient number, since it is larger than the sum of its proper divisors (1174891).

2815925 is a wasteful number, since it uses less digits than its factorization.

2815925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16108 (or 16103 counting only the distinct ones).

The product of its digits is 7200, while the sum is 32.

The square root of 2815925 is about 1678.0718101440. The cubic root of 2815925 is about 141.2126797271.

The spelling of 2815925 in words is "two million, eight hundred fifteen thousand, nine hundred twenty-five".