2506293509 has 16 divisors (see below), whose sum is σ = 2664714240. Its totient is φ = 2352152880.

The previous prime is 2506293499. The next prime is 2506293511. The reversal of 2506293509 is 9053926052.

It is a cyclic number.

It is not a de Polignac number, because 2506293509 - 2⁸ = 2506293253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2506293529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 854804 + ... + 857730.

It is an arithmetic number, because the mean of its divisors is an integer number (166544640).

Almost surely, 2^2506293509 is an apocalyptic number.

It is an amenable number.

2506293509 is a deficient number, since it is larger than the sum of its proper divisors (158420731).

2506293509 is a wasteful number, since it uses less digits than its factorization.

2506293509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3640.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 2506293509 is about 50062.8955315211. The cubic root of 2506293509 is about 1358.3467347376.

The spelling of 2506293509 in words is "two billion, five hundred six million, two hundred ninety-three thousand, five hundred nine".