2557706632 has 16 divisors (see below), whose sum is σ = 5164600140. Its totient is φ = 1180479936.

The previous prime is 2557706617. The next prime is 2557706633. The reversal of 2557706632 is 2366077552.

It can be written as a sum of positive squares in 2 ways, for example, as 2461548996 + 96157636 = 49614^2 + 9806^2 .

It is not an unprimeable number, because it can be changed into a prime (2557706633) 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, 12296563 + ... + 12296770.

Almost surely, 2^2557706632 is an apocalyptic number.

It is an amenable number.

2557706632 is an abundant number, since it is smaller than the sum of its proper divisors (2606893508).

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

2557706632 is a wasteful number, since it uses less digits than its factorization.

2557706632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24593352 (or 24593348 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 43.

The square root of 2557706632 is about 50573.7741522224. The cubic root of 2557706632 is about 1367.5721348672.

The spelling of 2557706632 in words is "two billion, five hundred fifty-seven million, seven hundred six thousand, six hundred thirty-two".