2506130465 has 4 divisors (see below), whose sum is σ = 3007356564. Its totient is φ = 2004904368.

The previous prime is 2506130447. The next prime is 2506130467. The reversal of 2506130465 is 5640316052.

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 702939169 + 1803191296 = 26513^2 + 42464^2 .

It is a cyclic number.

It is not a de Polignac number, because 2506130465 - 2⁶ = 2506130401 is a prime.

It is a super-2 number, since 2×2506130465² = 12561379815202232450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2506130467) 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, 250613042 + ... + 250613051.

It is an arithmetic number, because the mean of its divisors is an integer number (751839141).

Almost surely, 2^2506130465 is an apocalyptic number.

It is an amenable number.

2506130465 is a deficient number, since it is larger than the sum of its proper divisors (501226099).

2506130465 is an equidigital number, since it uses as much as digits as its factorization.

2506130465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501226098.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 2506130465 is about 50061.2671134081. The cubic root of 2506130465 is about 1358.3172788782.

The spelling of 2506130465 in words is "two billion, five hundred six million, one hundred thirty thousand, four hundred sixty-five".