2520872251 has 8 divisors (see below), whose sum is σ = 2683908864. Its totient is φ = 2359474560.

The previous prime is 2520872219. The next prime is 2520872261. The reversal of 2520872251 is 1522780252.

2520872251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2520872251 - 2⁵ = 2520872219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2520872201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406555 + ... + 412708.

It is an arithmetic number, because the mean of its divisors is an integer number (335488608).

Almost surely, 2^2520872251 is an apocalyptic number.

2520872251 is a deficient number, since it is larger than the sum of its proper divisors (163036613).

2520872251 is a wasteful number, since it uses less digits than its factorization.

2520872251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819461.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 2520872251 is about 50208.2886683066. The cubic root of 2520872251 is about 1360.9754123847.

The spelling of 2520872251 in words is "two billion, five hundred twenty million, eight hundred seventy-two thousand, two hundred fifty-one".