2150006520 has 32 divisors (see below), whose sum is σ = 6450019920. Its totient is φ = 573335040.

The previous prime is 2150006423. The next prime is 2150006531. The reversal of 2150006520 is 256000512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8958241 + ... + 8958480.

Almost surely, 2^2150006520 is an apocalyptic number.

2150006520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2150006520 is an abundant number, since it is smaller than the sum of its proper divisors (4300013400).

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

2150006520 is a wasteful number, since it uses less digits than its factorization.

2150006520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17916735 (or 17916731 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2150006520 is about 46368.1627843933. The cubic root of 2150006520 is about 1290.6641853428.

The spelling of 2150006520 in words is "two billion, one hundred fifty million, six thousand, five hundred twenty".