2001501552 has 40 divisors (see below), whose sum is σ = 5185489536. Its totient is φ = 665238976.

The previous prime is 2001501503. The next prime is 2001501559. The reversal of 2001501552 is 2551051002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001501559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43428 + ... + 76739.

Almost surely, 2^2001501552 is an apocalyptic number.

It is an amenable number.

2001501552 is an abundant number, since it is smaller than the sum of its proper divisors (3183987984).

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

2001501552 is a wasteful number, since it uses less digits than its factorization.

2001501552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120525 (or 120519 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 2001501552 is about 44738.1442619159. The cubic root of 2001501552 is about 1260.2362771817.

Adding to 2001501552 its reverse (2551051002), we get a palindrome (4552552554).

The spelling of 2001501552 in words is "two billion, one million, five hundred one thousand, five hundred fifty-two".