2506590609 has 8 divisors (see below), whose sum is σ = 3350848512. Its totient is φ = 1666696560.

The previous prime is 2506590563. The next prime is 2506590613. The reversal of 2506590609 is 9060956052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2506590609 - 2²¹ = 2504493457 is a prime.

It is a super-2 number, since 2×2506590609² = 12565992962253981762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2506590649) 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, 1089622 + ... + 1091919.

It is an arithmetic number, because the mean of its divisors is an integer number (418856064).

Almost surely, 2^2506590609 is an apocalyptic number.

It is an amenable number.

2506590609 is a deficient number, since it is larger than the sum of its proper divisors (844257903).

2506590609 is a wasteful number, since it uses less digits than its factorization.

2506590609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181927.

The product of its (nonzero) digits is 145800, while the sum is 42.

The square root of 2506590609 is about 50065.8627110330. The cubic root of 2506590609 is about 1358.4004061409.

The spelling of 2506590609 in words is "two billion, five hundred six million, five hundred ninety thousand, six hundred nine".