2521315272 has 128 divisors (see below), whose sum is σ = 7421783040. Its totient is φ = 698699520.

The previous prime is 2521315261. The next prime is 2521315289. The reversal of 2521315272 is 2725131252.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3648447 + ... + 3649137.

It is an arithmetic number, because the mean of its divisors is an integer number (57982680).

Almost surely, 2^2521315272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2521315272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3710891520).

2521315272 is an abundant number, since it is smaller than the sum of its proper divisors (4900467768).

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

2521315272 is a wasteful number, since it uses less digits than its factorization.

2521315272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331 (or 1327 counting only the distinct ones).

The product of its digits is 8400, while the sum is 30.

The square root of 2521315272 is about 50212.7003057991. The cubic root of 2521315272 is about 1361.0551341782.

It can be divided in two parts, 252131 and 5272, that added together give a triangular number (257403 = T₇₁₇).

The spelling of 2521315272 in words is "two billion, five hundred twenty-one million, three hundred fifteen thousand, two hundred seventy-two".