2505020205051 has 40 divisors (see below), whose sum is σ = 4605621207264. Its totient is φ = 1321329335040.

The previous prime is 2505020205041. The next prime is 2505020205097. The reversal of 2505020205051 is 1505020205052.

It is not a de Polignac number, because 2505020205051 - 2¹¹ = 2505020203003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2505020205041) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 169916670 + ... + 169931411.

Almost surely, 2^{2505020205051} is an apocalyptic number.

2505020205051 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2505020205051 is a deficient number, since it is larger than the sum of its proper divisors (2100601002213).

2505020205051 is a wasteful number, since it uses less digits than its factorization.

2505020205051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339848113 (or 339848104 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

Subtracting from 2505020205051 its reverse (1505020205052), we obtain a palindrome (999999999999).

The spelling of 2505020205051 in words is "two trillion, five hundred five billion, twenty million, two hundred five thousand, fifty-one".