2551067136 has 200 divisors, whose sum is σ = 7686924300. Its totient is φ = 842268672.

The previous prime is 2551067111. The next prime is 2551067137. The reversal of 2551067136 is 6317601552.

2551067136 is a `hidden beast` number, since 2 + 5 + 510 + 6 + 7 + 136 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2525665536 + 25401600 = 50256^2 + 5040^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2551067136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551067137) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5681440 + ... + 5681888.

Almost surely, 2^2551067136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2551067136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3843462150).

2551067136 is an abundant number, since it is smaller than the sum of its proper divisors (5135857164).

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

2551067136 is an equidigital number, since it uses as much as digits as its factorization.

2551067136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 591 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 2551067136 is about 50508.0898074754. The cubic root of 2551067136 is about 1366.3877590144.

Adding to 2551067136 its reverse (6317601552), we get a palindrome (8868668688).

The spelling of 2551067136 in words is "two billion, five hundred fifty-one million, sixty-seven thousand, one hundred thirty-six".