2523091 has 4 divisors (see below), whose sum is σ = 2529352. Its totient is φ = 2516832.

The previous prime is 2523083. The next prime is 2523107. The reversal of 2523091 is 1903252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2523091 - 2³ = 2523083 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2523011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2481 + ... + 3346.

It is an arithmetic number, because the mean of its divisors is an integer number (632338).

2^2523091 is an apocalyptic number.

2523091 is a deficient number, since it is larger than the sum of its proper divisors (6261).

2523091 is an equidigital number, since it uses as much as digits as its factorization.

2523091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6260.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 2523091 is about 1588.4240617669. The cubic root of 2523091 is about 136.1374583392.

It can be divided in two parts, 25 and 23091, that multiplied together give a triangular number (577275 = T₁₀₇₄).

The spelling of 2523091 in words is "two million, five hundred twenty-three thousand, ninety-one".