2551240031 has 8 divisors (see below), whose sum is σ = 2705338944. Its totient is φ = 2397588480.

The previous prime is 2551240019. The next prime is 2551240033. The reversal of 2551240031 is 1300421552.

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 2551240031 - 2⁶ = 2551239967 is a prime.

It is a super-2 number, since 2×2551240031² = 13017651391553761922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2551239979 and 2551240006.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 100055 + ... + 122936.

It is an arithmetic number, because the mean of its divisors is an integer number (338167368).

Almost surely, 2^2551240031 is an apocalyptic number.

2551240031 is a deficient number, since it is larger than the sum of its proper divisors (154098913).

2551240031 is a wasteful number, since it uses less digits than its factorization.

2551240031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223681.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2551240031 is about 50509.8013359783. The cubic root of 2551240031 is about 1366.4186266556.

Adding to 2551240031 its reverse (1300421552), we get a palindrome (3851661583).

The spelling of 2551240031 in words is "two billion, five hundred fifty-one million, two hundred forty thousand, thirty-one".