2521320036 has 12 divisors (see below), whose sum is σ = 5883080112. Its totient is φ = 840440008.

The previous prime is 2521320019. The next prime is 2521320041. The reversal of 2521320036 is 6300231252.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 2521319988 and 2521320015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105054990 + ... + 105055013.

It is an arithmetic number, because the mean of its divisors is an integer number (490256676).

Almost surely, 2^2521320036 is an apocalyptic number.

It is an amenable number.

2521320036 is an abundant number, since it is smaller than the sum of its proper divisors (3361760076).

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

2521320036 is a wasteful number, since it uses less digits than its factorization.

2521320036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210110010 (or 210110008 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 2521320036 is about 50212.7477439743. The cubic root of 2521320036 is about 1361.0559914110.

Adding to 2521320036 its reverse (6300231252), we get a palindrome (8821551288).

The spelling of 2521320036 in words is "two billion, five hundred twenty-one million, three hundred twenty thousand, thirty-six".