2505665343 has 16 divisors (see below), whose sum is σ = 3540624480. Its totient is φ = 1570753536.

The previous prime is 2505665339. The next prime is 2505665347. The reversal of 2505665343 is 3435665052.

It is an interprime number because it is at equal distance from previous prime (2505665339) and next prime (2505665347).

It is not a de Polignac number, because 2505665343 - 2² = 2505665339 is a prime.

It is a super-2 number, since 2×2505665343² = 12556717622222615298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505665347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35821 + ... + 79337.

It is an arithmetic number, because the mean of its divisors is an integer number (221289030).

Almost surely, 2^2505665343 is an apocalyptic number.

2505665343 is a deficient number, since it is larger than the sum of its proper divisors (1034959137).

2505665343 is a wasteful number, since it uses less digits than its factorization.

2505665343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44666.

The product of its (nonzero) digits is 324000, while the sum is 39.

The square root of 2505665343 is about 50056.6213702044. The cubic root of 2505665343 is about 1358.2332419738.

The spelling of 2505665343 in words is "two billion, five hundred five million, six hundred sixty-five thousand, three hundred forty-three".