2315521200 has 60 divisors (see below), whose sum is σ = 7417390088. Its totient is φ = 617472000.

The previous prime is 2315521163. The next prime is 2315521213. The reversal of 2315521200 is 21255132.

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 963601 + ... + 966000.

Almost surely, 2^2315521200 is an apocalyptic number.

2315521200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2315521200 is an abundant number, since it is smaller than the sum of its proper divisors (5101868888).

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

2315521200 is a wasteful number, since it uses less digits than its factorization.

2315521200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929622 (or 1929611 counting only the distinct ones).

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

The square root of 2315521200 is about 48119.8628426973. The cubic root of 2315521200 is about 1322.9687542790.

Adding to 2315521200 its reverse (21255132), we get a palindrome (2336776332).

The spelling of 2315521200 in words is "two billion, three hundred fifteen million, five hundred twenty-one thousand, two hundred".