2550240420551 has 16 divisors (see below), whose sum is σ = 2749114684800. Its totient is φ = 2357922153888.

The previous prime is 2550240420503. The next prime is 2550240420583. The reversal of 2550240420551 is 1550240420552.

It is a cyclic number.

It is not a de Polignac number, because 2550240420551 - 2³⁰ = 2549166678727 is a prime.

It is a super-2 number, since 2×2550240420551² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2550240423551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251081 + ... + 2272338.

It is an arithmetic number, because the mean of its divisors is an integer number (171819667800).

Almost surely, 2^{2550240420551} is an apocalyptic number.

2550240420551 is a deficient number, since it is larger than the sum of its proper divisors (198874264249).

2550240420551 is a wasteful number, since it uses less digits than its factorization.

2550240420551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524718.

The product of its (nonzero) digits is 80000, while the sum is 35.

Subtracting from 2550240420551 its reverse (1550240420552), we obtain a palindrome (999999999999).

The spelling of 2550240420551 in words is "two trillion, five hundred fifty billion, two hundred forty million, four hundred twenty thousand, five hundred fifty-one".