2001523524 has 96 divisors (see below), whose sum is σ = 6270544896. Its totient is φ = 479882880.

The previous prime is 2001523487. The next prime is 2001523541. The reversal of 2001523524 is 4253251002.

It is a junction number, because it is equal to n+sod(n) for n = 2001523494 and 2001523503.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71302 + ... + 95325.

It is an arithmetic number, because the mean of its divisors is an integer number (65318176).

Almost surely, 2^2001523524 is an apocalyptic number.

It is an amenable number.

2001523524 is an abundant number, since it is smaller than the sum of its proper divisors (4269021372).

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

2001523524 is a wasteful number, since it uses less digits than its factorization.

2001523524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166665 (or 166663 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2001523524 is about 44738.3898235062. The cubic root of 2001523524 is about 1260.2408886879.

Adding to 2001523524 its reverse (4253251002), we get a palindrome (6254774526).

It can be divided in two parts, 2001 and 523524, that added together give a palindrome (525525).

The spelling of 2001523524 in words is "two billion, one million, five hundred twenty-three thousand, five hundred twenty-four".