2001522502 has 48 divisors (see below), whose sum is σ = 3693271680. Its totient is φ = 809827200.

The previous prime is 2001522487. The next prime is 2001522521. The reversal of 2001522502 is 2052251002.

It is a self number, because there is not a number n which added to its sum of digits gives 2001522502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116524 + ... + 132592.

It is an arithmetic number, because the mean of its divisors is an integer number (76943160).

Almost surely, 2^2001522502 is an apocalyptic number.

2001522502 is a deficient number, since it is larger than the sum of its proper divisors (1691749178).

2001522502 is a wasteful number, since it uses less digits than its factorization.

2001522502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16157 (or 16150 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 2001522502 is about 44738.3784015469. The cubic root of 2001522502 is about 1260.2406741902.

Adding to 2001522502 its reverse (2052251002), we get a palindrome (4053773504).

The spelling of 2001522502 in words is "two billion, one million, five hundred twenty-two thousand, five hundred two".