2506463644 has 6 divisors (see below), whose sum is σ = 4386311384. Its totient is φ = 1253231820.

The previous prime is 2506463639. The next prime is 2506463669. The reversal of 2506463644 is 4463646052.

2506463644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2506463597 and 2506463606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313307952 + ... + 313307959.

Almost surely, 2^2506463644 is an apocalyptic number.

It is an amenable number.

2506463644 is a deficient number, since it is larger than the sum of its proper divisors (1879847740).

2506463644 is a wasteful number, since it uses less digits than its factorization.

2506463644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626615915 (or 626615913 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 40.

The square root of 2506463644 is about 50064.5947152276. The cubic root of 2506463644 is about 1358.3774703094.

The spelling of 2506463644 in words is "two billion, five hundred six million, four hundred sixty-three thousand, six hundred forty-four".