2505351 has 4 divisors (see below), whose sum is σ = 3340472. Its totient is φ = 1670232.

The previous prime is 2505343. The next prime is 2505353. The reversal of 2505351 is 1535052.

2505351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2505351 - 2³ = 2505343 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417556 + ... + 417561.

It is an arithmetic number, because the mean of its divisors is an integer number (835118).

2^2505351 is an apocalyptic number.

2505351 is a deficient number, since it is larger than the sum of its proper divisors (835121).

2505351 is an equidigital number, since it uses as much as digits as its factorization.

2505351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835120.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 2505351 is about 1582.8300603666. The cubic root of 2505351 is about 135.8176441496.

Subtracting from 2505351 its reverse (1535052), we obtain a cube (970299 = 99³).

The spelling of 2505351 in words is "two million, five hundred five thousand, three hundred fifty-one".