2525520 has 80 divisors (see below), whose sum is σ = 8303040. Its totient is φ = 632832.

The previous prime is 2525507. The next prime is 2525531. The reversal of 2525520 is 255252.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3771 + ... + 4389.

It is an arithmetic number, because the mean of its divisors is an integer number (103788).

2^2525520 is an apocalyptic number.

2525520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2525520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4151520).

2525520 is an abundant number, since it is smaller than the sum of its proper divisors (5777520).

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

2525520 is a wasteful number, since it uses less digits than its factorization.

2525520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652 (or 646 counting only the distinct ones).

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

The square root of 2525520 is about 1589.1884721455. The cubic root of 2525520 is about 136.1811312029.

The spelling of 2525520 in words is "two million, five hundred twenty-five thousand, five hundred twenty".