2551240211 has 16 divisors (see below), whose sum is σ = 2839475520. Its totient is φ = 2277166080.

The previous prime is 2551240199. The next prime is 2551240261. The reversal of 2551240211 is 1120421552.

It is a cyclic number.

It is not a de Polignac number, because 2551240211 - 2²⁶ = 2484131347 is a prime.

It is a super-2 number, since 2×2551240211² = 13017653228446649042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2551240261) 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, 39050 + ... + 81408.

It is an arithmetic number, because the mean of its divisors is an integer number (177467220).

Almost surely, 2^2551240211 is an apocalyptic number.

2551240211 is a deficient number, since it is larger than the sum of its proper divisors (288235309).

2551240211 is a wasteful number, since it uses less digits than its factorization.

2551240211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42526.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2551240211 is about 50509.8031178107. The cubic root of 2551240211 is about 1366.4186587910.

Adding to 2551240211 its reverse (1120421552), we get a palindrome (3671661763).

The spelling of 2551240211 in words is "two billion, five hundred fifty-one million, two hundred forty thousand, two hundred eleven".