2551611064 has 16 divisors (see below), whose sum is σ = 4851655920. Its totient is φ = 1257836160.

The previous prime is 2551611017. The next prime is 2551611091. The reversal of 2551611064 is 4601161552.

2551611064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2245569 + ... + 2246704.

It is an arithmetic number, because the mean of its divisors is an integer number (303228495).

Almost surely, 2^2551611064 is an apocalyptic number.

It is an amenable number.

2551611064 is a deficient number, since it is larger than the sum of its proper divisors (2300044856).

2551611064 is a wasteful number, since it uses less digits than its factorization.

2551611064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4492350 (or 4492346 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 2551611064 is about 50513.4740836542. The cubic root of 2551611064 is about 1366.4848639651.

The spelling of 2551611064 in words is "two billion, five hundred fifty-one million, six hundred eleven thousand, sixty-four".