2520534 has 16 divisors (see below), whose sum is σ = 5068800. Its totient is φ = 835560.

The previous prime is 2520503. The next prime is 2520577. The reversal of 2520534 is 4350252.

It is a self number, because there is not a number n which added to its sum of digits gives 2520534.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 139 + ... + 2249.

It is an arithmetic number, because the mean of its divisors is an integer number (316800).

2^2520534 is an apocalyptic number.

2520534 is an abundant number, since it is smaller than the sum of its proper divisors (2548266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2520534 is a wasteful number, since it uses less digits than its factorization.

2520534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 2520534 is about 1587.6189719199. The cubic root of 2520534 is about 136.0914537703.

Adding to 2520534 its reverse (4350252), we get a palindrome (6870786).

The spelling of 2520534 in words is "two million, five hundred twenty thousand, five hundred thirty-four".