2521532130 has 32 divisors (see below), whose sum is σ = 6517191744. Its totient is φ = 620684736.

The previous prime is 2521532099. The next prime is 2521532131. The reversal of 2521532130 is 312351252.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2521532130.

It is not an unprimeable number, because it can be changed into a prime (2521532131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3232344 + ... + 3233123.

It is an arithmetic number, because the mean of its divisors is an integer number (203662242).

Almost surely, 2^2521532130 is an apocalyptic number.

2521532130 is an abundant number, since it is smaller than the sum of its proper divisors (3995659614).

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

2521532130 is a wasteful number, since it uses less digits than its factorization.

2521532130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6465490.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2521532130 is about 50214.8596532939. The cubic root of 2521532130 is about 1361.0941544515.

Adding to 2521532130 its reverse (312351252), we get a palindrome (2833883382).

The spelling of 2521532130 in words is "two billion, five hundred twenty-one million, five hundred thirty-two thousand, one hundred thirty".