2520522251 has 16 divisors (see below), whose sum is σ = 2847110784. Its totient is φ = 2215569024.

The previous prime is 2520522241. The next prime is 2520522253. The reversal of 2520522251 is 1522250252.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2520522251 is a prime.

It is a super-2 number, since 2×2520522251² = 12706064835572214002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2520522251.

It is not an unprimeable number, because it can be changed into a prime (2520522253) 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, 33140 + ... + 78353.

It is an arithmetic number, because the mean of its divisors is an integer number (177944424).

Almost surely, 2^2520522251 is an apocalyptic number.

2520522251 is a deficient number, since it is larger than the sum of its proper divisors (326588533).

2520522251 is a wasteful number, since it uses less digits than its factorization.

2520522251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111590.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 2520522251 is about 50204.8030670373. The cubic root of 2520522251 is about 1360.9124231501.

The spelling of 2520522251 in words is "two billion, five hundred twenty million, five hundred twenty-two thousand, two hundred fifty-one".