2500001720775 has 288 divisors, whose sum is σ = 5194231922880. Its totient is φ = 1183927726080.

The previous prime is 2500001720759. The next prime is 2500001720873. The reversal of 2500001720775 is 5770271000052.

It is not a de Polignac number, because 2500001720775 - 2⁴ = 2500001720759 is a prime.

It is a super-2 number, since 2×2500001720775² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 260059869 + ... + 260069481.

It is an arithmetic number, because the mean of its divisors is an integer number (18035527510).

Almost surely, 2^{2500001720775} is an apocalyptic number.

2500001720775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2500001720775 is an abundant number, since it is smaller than the sum of its proper divisors (2694230202105).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2500001720775 is a wasteful number, since it uses less digits than its factorization.

2500001720775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9777 (or 9760 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 36.

The spelling of 2500001720775 in words is "two trillion, five hundred billion, one million, seven hundred twenty thousand, seven hundred seventy-five".