2520654856 has 16 divisors (see below), whose sum is σ = 4740257340. Its totient is φ = 1256586240.

The previous prime is 2520654853. The next prime is 2520654881. The reversal of 2520654856 is 6584560252.

It can be written as a sum of positive squares in 2 ways, for example, as 2483028900 + 37625956 = 49830^2 + 6134^2 .

It is not an unprimeable number, because it can be changed into a prime (2520654853) 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, 464785 + ... + 470176.

Almost surely, 2^2520654856 is an apocalyptic number.

It is an amenable number.

2520654856 is a deficient number, since it is larger than the sum of its proper divisors (2219602484).

2520654856 is a wasteful number, since it uses less digits than its factorization.

2520654856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935304 (or 935300 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 43.

The square root of 2520654856 is about 50206.1236902432. The cubic root of 2520654856 is about 1360.9362886575.

The spelling of 2520654856 in words is "two billion, five hundred twenty million, six hundred fifty-four thousand, eight hundred fifty-six".