2521260516 has 24 divisors (see below), whose sum is σ = 5885137440. Its totient is φ = 840106432.

The previous prime is 2521260503. The next prime is 2521260557. The reversal of 2521260516 is 6150621252.

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, 4506 + ... + 71153.

It is an arithmetic number, because the mean of its divisors is an integer number (245214060).

Almost surely, 2^2521260516 is an apocalyptic number.

It is an amenable number.

2521260516 is an abundant number, since it is smaller than the sum of its proper divisors (3363876924).

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

2521260516 is a wasteful number, since it uses less digits than its factorization.

2521260516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78443 (or 78441 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 2521260516 is about 50212.1550622954. The cubic root of 2521260516 is about 1361.0452813215.

Adding to 2521260516 its reverse (6150621252), we get a palindrome (8671881768).

The spelling of 2521260516 in words is "two billion, five hundred twenty-one million, two hundred sixty thousand, five hundred sixteen".