2551124142 has 144 divisors (see below), whose sum is σ = 7044064560. Its totient is φ = 662247936.

The previous prime is 2551124141. The next prime is 2551124179. The reversal of 2551124142 is 2414211552.

It is a happy number.

2551124142 is a `hidden beast` number, since 2 + 5 + 511 + 2 + 4 + 142 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551124141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 431893 + ... + 437759.

It is an arithmetic number, because the mean of its divisors is an integer number (48917115).

Almost surely, 2^2551124142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2551124142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3522032280).

2551124142 is an abundant number, since it is smaller than the sum of its proper divisors (4492940418).

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

2551124142 is a wasteful number, since it uses less digits than its factorization.

2551124142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5935 (or 5925 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 2551124142 is about 50508.6541297628. The cubic root of 2551124142 is about 1366.3979366795.

Adding to 2551124142 its reverse (2414211552), we get a palindrome (4965335694).

The spelling of 2551124142 in words is "two billion, five hundred fifty-one million, one hundred twenty-four thousand, one hundred forty-two".