2506843605 has 64 divisors (see below), whose sum is σ = 4659056640. Its totient is φ = 1127333376.

The previous prime is 2506843601. The next prime is 2506843609. The reversal of 2506843605 is 5063486052.

It is an interprime number because it is at equal distance from previous prime (2506843601) and next prime (2506843609).

It is not a de Polignac number, because 2506843605 - 2² = 2506843601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2506843601) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2727336 + ... + 2728254.

It is an arithmetic number, because the mean of its divisors is an integer number (72797760).

Almost surely, 2^2506843605 is an apocalyptic number.

It is an amenable number.

2506843605 is a deficient number, since it is larger than the sum of its proper divisors (2152213035).

2506843605 is a wasteful number, since it uses less digits than its factorization.

2506843605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330.

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 2506843605 is about 50068.3892790651. The cubic root of 2506843605 is about 1358.4461067706.

The spelling of 2506843605 in words is "two billion, five hundred six million, eight hundred forty-three thousand, six hundred five".