2581117075025 has 12 divisors (see below), whose sum is σ = 3268682731392. Its totient is φ = 2020959751440.

The previous prime is 2581117075003. The next prime is 2581117075073. The reversal of 2581117075025 is 5205707111852.

It is not a de Polignac number, because 2581117075025 - 2¹⁶ = 2581117009489 is a prime.

It is a super-2 number, since 2×2581117075025² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1098346517 + ... + 1098348866.

It is an arithmetic number, because the mean of its divisors is an integer number (272390227616).

Almost surely, 2^{2581117075025} is an apocalyptic number.

2581117075025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2581117075025 is a deficient number, since it is larger than the sum of its proper divisors (687565656367).

2581117075025 is a wasteful number, since it uses less digits than its factorization.

2581117075025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196695440 (or 2196695435 counting only the distinct ones).

The product of its (nonzero) digits is 196000, while the sum is 44.

The spelling of 2581117075025 in words is "two trillion, five hundred eighty-one billion, one hundred seventeen million, seventy-five thousand, twenty-five".