2003625520 has 80 divisors (see below), whose sum is σ = 5099173632. Its totient is φ = 727649280.

The previous prime is 2003625509. The next prime is 2003625521. The reversal of 2003625520 is 255263002.

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

It is not an unprimeable number, because it can be changed into a prime (2003625521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47649 + ... + 79231.

Almost surely, 2^2003625520 is an apocalyptic number.

2003625520 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 2003625520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2549586816).

2003625520 is an abundant number, since it is smaller than the sum of its proper divisors (3095548112).

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

2003625520 is a wasteful number, since it uses less digits than its factorization.

2003625520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31670 (or 31664 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 2003625520 is about 44761.8757426451. The cubic root of 2003625520 is about 1260.6819018267.

Adding to 2003625520 its reverse (255263002), we get a palindrome (2258888522).

The spelling of 2003625520 in words is "two billion, three million, six hundred twenty-five thousand, five hundred twenty".