2565106945503 has 8 divisors (see below), whose sum is σ = 3422655562416. Its totient is φ = 1708814812800.

The previous prime is 2565106945469. The next prime is 2565106945537. The reversal of 2565106945503 is 3055496015652.

It is an interprime number because it is at equal distance from previous prime (2565106945469) and next prime (2565106945537).

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

It is not a de Polignac number, because 2565106945503 - 2⁶ = 2565106945439 is a prime.

It is a super-2 number, since 2×2565106945503² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565106946503) 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, 314116288 + ... + 314124453.

It is an arithmetic number, because the mean of its divisors is an integer number (427831945302).

Almost surely, 2^{2565106945503} is an apocalyptic number.

2565106945503 is a deficient number, since it is larger than the sum of its proper divisors (857548616913).

2565106945503 is a wasteful number, since it uses less digits than its factorization.

2565106945503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628242105.

The product of its (nonzero) digits is 4860000, while the sum is 51.

The spelling of 2565106945503 in words is "two trillion, five hundred sixty-five billion, one hundred six million, nine hundred forty-five thousand, five hundred three".