2506465663 has 8 divisors (see below), whose sum is σ = 2703682688. Its totient is φ = 2309878944.

The previous prime is 2506465651. The next prime is 2506465681. The reversal of 2506465663 is 3665646052.

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

It is a cyclic number.

It is not a de Polignac number, because 2506465663 - 2⁹ = 2506465151 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 (2506465603) 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, 149295 + ... + 165232.

It is an arithmetic number, because the mean of its divisors is an integer number (337960336).

Almost surely, 2^2506465663 is an apocalyptic number.

2506465663 is a deficient number, since it is larger than the sum of its proper divisors (197217025).

2506465663 is a wasteful number, since it uses less digits than its factorization.

2506465663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315153.

The product of its (nonzero) digits is 777600, while the sum is 43.

The square root of 2506465663 is about 50064.6148791739. The cubic root of 2506465663 is about 1358.3778350415.

The spelling of 2506465663 in words is "two billion, five hundred six million, four hundred sixty-five thousand, six hundred sixty-three".