266252434525 has 24 divisors (see below), whose sum is σ = 411619351104. Its totient is φ = 165975542400.

The previous prime is 266252434477. The next prime is 266252434537. The reversal of 266252434525 is 525434252662.

It is not a de Polignac number, because 266252434525 - 2¹¹ = 266252432477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69154552 + ... + 69158401.

It is an arithmetic number, because the mean of its divisors is an integer number (17150806296).

Almost surely, 2^266252434525 is an apocalyptic number.

266252434525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

266252434525 is a deficient number, since it is larger than the sum of its proper divisors (145366916579).

266252434525 is a wasteful number, since it uses less digits than its factorization.

266252434525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138312981 (or 138312976 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 46.

The spelling of 266252434525 in words is "two hundred sixty-six billion, two hundred fifty-two million, four hundred thirty-four thousand, five hundred twenty-five".