2520525 has 24 divisors (see below), whose sum is σ = 4763584. Its totient is φ = 1152000.

The previous prime is 2520503. The next prime is 2520577. The reversal of 2520525 is 5250252.

It is not a de Polignac number, because 2520525 - 2¹² = 2516429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 23 ways as a sum of consecutive naturals, for example, 1876 + ... + 2925.

2^2520525 is an apocalyptic number.

2520525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2520525 is a deficient number, since it is larger than the sum of its proper divisors (2243059).

2520525 is a wasteful number, since it uses less digits than its factorization.

2520525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4821 (or 4816 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 2520525 is about 1587.6161374841. The cubic root of 2520525 is about 136.0912917908.

Adding to 2520525 its reverse (5250252), we get a palindrome (7770777).

The spelling of 2520525 in words is "two million, five hundred twenty thousand, five hundred twenty-five".