2551240233 has 12 divisors (see below), whose sum is σ = 3821611248. Its totient is φ = 1700826660.

The previous prime is 2551240199. The next prime is 2551240261. The reversal of 2551240233 is 3320421552.

It is a happy number.

2551240233 is a `hidden beast` number, since 255 + 1 + 2 + 402 + 3 + 3 = 666.

It is not a de Polignac number, because 2551240233 - 2¹⁷ = 2551109161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2551240197 and 2551240206.

It is not an unprimeable number, because it can be changed into a prime (2551240033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5249223 + ... + 5249708.

It is an arithmetic number, because the mean of its divisors is an integer number (318467604).

Almost surely, 2^2551240233 is an apocalyptic number.

It is an amenable number.

2551240233 is a deficient number, since it is larger than the sum of its proper divisors (1270371015).

2551240233 is an equidigital number, since it uses as much as digits as its factorization.

2551240233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10498946 (or 10498934 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2551240233 is about 50509.8033355902. The cubic root of 2551240233 is about 1366.4186627186.

Adding to 2551240233 its reverse (3320421552), we get a palindrome (5871661785).

The spelling of 2551240233 in words is "two billion, five hundred fifty-one million, two hundred forty thousand, two hundred thirty-three".