2520351 has 12 divisors (see below), whose sum is σ = 3679312. Its totient is φ = 1662336.

The previous prime is 2520347. The next prime is 2520367. The reversal of 2520351 is 1530252.

It is a happy number.

It is not a de Polignac number, because 2520351 - 2² = 2520347 is a prime.

It is a Duffinian number.

2520351 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 571 + ... + 2316.

2^2520351 is an apocalyptic number.

2520351 is a deficient number, since it is larger than the sum of its proper divisors (1158961).

2520351 is a wasteful number, since it uses less digits than its factorization.

2520351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2990 (or 2987 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2520351 is about 1587.5613373977. The cubic root of 2520351 is about 136.0881601113.

Subtracting from 2520351 its reverse (1530252), we obtain a palindrome (990099).

The spelling of 2520351 in words is "two million, five hundred twenty thousand, three hundred fifty-one".