2520770251 has 8 divisors (see below), whose sum is σ = 2689427664.
Its totient is φ = 2354376960.
The previous prime is 2520770233. The next prime is 2520770257. The reversal of 2520770251 is 1520770252.
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 2520770251 - 223 = 2512381643 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2520770257) 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, 563730 + ... + 568183.
It is an arithmetic number, because the mean of its divisors is an integer number (336178458).
Almost surely, 22520770251 is an apocalyptic number.
2520770251 is a deficient number, since it is larger than the sum of its proper divisors (168657413).
2520770251 is a wasteful number, since it uses less digits than its factorization.
2520770251 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1132061.
The product of its (nonzero) digits is 9800, while the sum is 31.
The square root of 2520770251 is about 50207.2728894928.
The cubic root of 2520770251 is about 1360.9570561241.
Subtracting from 2520770251 its reverse (1520770252), we obtain a palindrome (999999999).
The spelling of 2520770251 in words is "two billion, five hundred twenty million, seven hundred seventy thousand, two hundred fifty-one".