2506487969 has 4 divisors (see below), whose sum is σ = 2507660820. Its totient is φ = 2505315120.

The previous prime is 2506487959. The next prime is 2506487993. The reversal of 2506487969 is 9697846052.

It is a happy number.

2506487969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1601200225 + 905287744 = 40015^2 + 30088^2 .

It is a cyclic number.

It is not a de Polignac number, because 2506487969 - 2⁴ = 2506487953 is a prime.

It is a super-2 number, since 2×2506487969² = 12564963877483489922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2506487909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583214 + ... + 587495.

It is an arithmetic number, because the mean of its divisors is an integer number (626915205).

Almost surely, 2^2506487969 is an apocalyptic number.

It is an amenable number.

2506487969 is a deficient number, since it is larger than the sum of its proper divisors (1172851).

2506487969 is a wasteful number, since it uses less digits than its factorization.

2506487969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172850.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The square root of 2506487969 is about 50064.8376507904. The cubic root of 2506487969 is about 1358.3818646048.

The spelling of 2506487969 in words is "two billion, five hundred six million, four hundred eighty-seven thousand, nine hundred sixty-nine".