2511493 has 2 divisors, whose sum is σ = 2511494. Its totient is φ = 2511492.

The previous prime is 2511473. The next prime is 2511499. The reversal of 2511493 is 3941152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1555009 + 956484 = 1247^2 + 978^2 .

It is a cyclic number.

It is not a de Polignac number, because 2511493 - 2¹⁷ = 2380421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2511499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1255746 + 1255747.

It is an arithmetic number, because the mean of its divisors is an integer number (1255747).

2^2511493 is an apocalyptic number.

It is an amenable number.

2511493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2511493 is an equidigital number, since it uses as much as digits as its factorization.

2511493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 25.

The square root of 2511493 is about 1584.7690683503. The cubic root of 2511493 is about 135.9285416125.

It can be divided in two parts, 251149 and 3, that added together give a palindrome (251152).

The spelling of 2511493 in words is "two million, five hundred eleven thousand, four hundred ninety-three".