2551536736 has 24 divisors (see below), whose sum is σ = 5740958160. Its totient is φ = 1093515648.

The previous prime is 2551536719. The next prime is 2551536737. The reversal of 2551536736 is 6376351552.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2551536692 and 2551536701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551536737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5695171 + ... + 5695618.

It is an arithmetic number, because the mean of its divisors is an integer number (239206590).

Almost surely, 2^2551536736 is an apocalyptic number.

It is an amenable number.

2551536736 is an abundant number, since it is smaller than the sum of its proper divisors (3189421424).

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

2551536736 is a wasteful number, since it uses less digits than its factorization.

2551536736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11390806 (or 11390798 counting only the distinct ones).

The product of its digits is 567000, while the sum is 43.

The square root of 2551536736 is about 50512.7383538054. The cubic root of 2551536736 is about 1366.4715953451.

The spelling of 2551536736 in words is "two billion, five hundred fifty-one million, five hundred thirty-six thousand, seven hundred thirty-six".