2532391 has 4 divisors (see below), whose sum is σ = 2600872. Its totient is φ = 2463912.

The previous prime is 2532389. The next prime is 2532401. The reversal of 2532391 is 1932352.

It is a happy number.

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 2532391 - 2¹ = 2532389 is a prime.

It is a Duffinian number.

2532391 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2532311) 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, 34185 + ... + 34258.

It is an arithmetic number, because the mean of its divisors is an integer number (650218).

2^2532391 is an apocalyptic number.

2532391 is a deficient number, since it is larger than the sum of its proper divisors (68481).

2532391 is an equidigital number, since it uses as much as digits as its factorization.

2532391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68480.

The product of its digits is 1620, while the sum is 25.

The square root of 2532391 is about 1591.3487989753. The cubic root of 2532391 is about 136.3045187651.

The spelling of 2532391 in words is "two million, five hundred thirty-two thousand, three hundred ninety-one".