2506577650 has 12 divisors (see below), whose sum is σ = 4662234522. Its totient is φ = 1002631040.

The previous prime is 2506577611. The next prime is 2506577659. The reversal of 2506577650 is 567756052.

It can be written as a sum of positive squares in 3 ways, for example, as 1466966601 + 1039611049 = 38301^2 + 32243^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2506577597 and 2506577606.

It is not an unprimeable number, because it can be changed into a prime (2506577659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25065727 + ... + 25065826.

Almost surely, 2^2506577650 is an apocalyptic number.

2506577650 is a deficient number, since it is larger than the sum of its proper divisors (2155656872).

2506577650 is a wasteful number, since it uses less digits than its factorization.

2506577650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50131565 (or 50131560 counting only the distinct ones).

The product of its (nonzero) digits is 441000, while the sum is 43.

The square root of 2506577650 is about 50065.7332913441. The cubic root of 2506577650 is about 1358.3980651735.

The spelling of 2506577650 in words is "two billion, five hundred six million, five hundred seventy-seven thousand, six hundred fifty".