2091525 has 24 divisors (see below), whose sum is σ = 3511680. Its totient is φ = 1098240.

The previous prime is 2091521. The next prime is 2091553. The reversal of 2091525 is 5251902.

It is not a de Polignac number, because 2091525 - 2² = 2091521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2091495 and 2091504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091521) 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, 5749 + ... + 6101.

It is an arithmetic number, because the mean of its divisors is an integer number (146320).

2^2091525 is an apocalyptic number.

2091525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2091525 is a deficient number, since it is larger than the sum of its proper divisors (1420155).

2091525 is a wasteful number, since it uses less digits than its factorization.

2091525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 2091525 is about 1446.2105655817. The cubic root of 2091525 is about 127.8854158481.

The spelling of 2091525 in words is "two million, ninety-one thousand, five hundred twenty-five".