4525520 has 20 divisors (see below), whose sum is σ = 10522020. Its totient is φ = 1810176.

The previous prime is 4525517. The next prime is 4525523. The reversal of 4525520 is 255254.

It is an interprime number because it is at equal distance from previous prime (4525517) and next prime (4525523).

It can be written as a sum of positive squares in 2 ways, for example, as 3297856 + 1227664 = 1816^2 + 1108^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4525523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28205 + ... + 28364.

It is an arithmetic number, because the mean of its divisors is an integer number (526101).

Almost surely, 2^4525520 is an apocalyptic number.

4525520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4525520 is an abundant number, since it is smaller than the sum of its proper divisors (5996500).

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

4525520 is a wasteful number, since it uses less digits than its factorization.

4525520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56582 (or 56576 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 4525520 is about 2127.3269612356. The cubic root of 4525520 is about 165.4078675965.

The spelling of 4525520 in words is "four million, five hundred twenty-five thousand, five hundred twenty".