2001532232505 has 64 divisors (see below), whose sum is σ = 3601062178560. Its totient is φ = 942499654656.

The previous prime is 2001532232347. The next prime is 2001532232519. The reversal of 2001532232505 is 5052322351002.

It is not a de Polignac number, because 2001532232505 - 2¹⁶ = 2001532166969 is a prime.

It is a super-2 number, since 2×2001532232505² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1048842 + ... + 2259011.

It is an arithmetic number, because the mean of its divisors is an integer number (56266596540).

Almost surely, 2^{2001532232505} is an apocalyptic number.

It is an amenable number.

2001532232505 is a deficient number, since it is larger than the sum of its proper divisors (1599529946055).

2001532232505 is a wasteful number, since it uses less digits than its factorization.

2001532232505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3308010.

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 2001532232505 its reverse (5052322351002), we get a palindrome (7053854583507).

The spelling of 2001532232505 in words is "two trillion, one billion, five hundred thirty-two million, two hundred thirty-two thousand, five hundred five".