2551540422 has 16 divisors (see below), whose sum is σ = 5103621360. Its totient is φ = 850423392.

The previous prime is 2551540417. The next prime is 2551540423. The reversal of 2551540422 is 2240451552.

It is a self number, because there is not a number n which added to its sum of digits gives 2551540422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551540423) 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, 65028 + ... + 96600.

It is an arithmetic number, because the mean of its divisors is an integer number (318976335).

Almost surely, 2^2551540422 is an apocalyptic number.

2551540422 is an abundant number, since it is smaller than the sum of its proper divisors (2552080938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2551540422 is a wasteful number, since it uses less digits than its factorization.

2551540422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45047.

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 2551540422 is about 50512.7748396383. The cubic root of 2551540422 is about 1366.4722533553.

Adding to 2551540422 its reverse (2240451552), we get a palindrome (4791991974).

The spelling of 2551540422 in words is "two billion, five hundred fifty-one million, five hundred forty thousand, four hundred twenty-two".