2506665453 has 8 divisors (see below), whose sum is σ = 3538821888. Its totient is φ = 1572809664.

The previous prime is 2506665443. The next prime is 2506665457. The reversal of 2506665453 is 3545666052.

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

It is not a de Polignac number, because 2506665453 - 2⁶ = 2506665389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2506665457) 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, 24575101 + ... + 24575202.

It is an arithmetic number, because the mean of its divisors is an integer number (442352736).

Almost surely, 2^2506665453 is an apocalyptic number.

It is an amenable number.

2506665453 is a deficient number, since it is larger than the sum of its proper divisors (1032156435).

2506665453 is a wasteful number, since it uses less digits than its factorization.

2506665453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49150323.

The product of its (nonzero) digits is 648000, while the sum is 42.

The square root of 2506665453 is about 50066.6101608647. The cubic root of 2506665453 is about 1358.4139261134.

The spelling of 2506665453 in words is "two billion, five hundred six million, six hundred sixty-five thousand, four hundred fifty-three".