2091725 has 12 divisors (see below), whose sum is σ = 2678400. Its totient is φ = 1618800.

The previous prime is 2091709. The next prime is 2091737. The reversal of 2091725 is 5271902.

It is not a de Polignac number, because 2091725 - 2⁴ = 2091709 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2091694 and 2091703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 575 + ... + 2124.

It is an arithmetic number, because the mean of its divisors is an integer number (223200).

2^2091725 is an apocalyptic number.

2091725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2091725 is a deficient number, since it is larger than the sum of its proper divisors (586675).

2091725 is a wasteful number, since it uses less digits than its factorization.

2091725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740 (or 2735 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 2091725 is about 1446.2797101529. The cubic root of 2091725 is about 127.8894920234.

The spelling of 2091725 in words is "two million, ninety-one thousand, seven hundred twenty-five".