2506447738 has 16 divisors (see below), whose sum is σ = 3964000320. Its totient is φ = 1185329376.

The previous prime is 2506447729. The next prime is 2506447739. The reversal of 2506447738 is 8377446052.

It is not an unprimeable number, because it can be changed into a prime (2506447739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30006 + ... + 76897.

It is an arithmetic number, because the mean of its divisors is an integer number (247750020).

Almost surely, 2^2506447738 is an apocalyptic number.

2506447738 is a deficient number, since it is larger than the sum of its proper divisors (1457552582).

2506447738 is a wasteful number, since it uses less digits than its factorization.

2506447738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107541.

The product of its (nonzero) digits is 1128960, while the sum is 46.

The square root of 2506447738 is about 50064.4358601992. The cubic root of 2506447738 is about 1358.3745968855.

The spelling of 2506447738 in words is "two billion, five hundred six million, four hundred forty-seven thousand, seven hundred thirty-eight".