265212431605125 has 48 divisors (see below), whose sum is σ = 478938793439808. Its totient is φ = 141195392498400.

The previous prime is 265212431605111. The next prime is 265212431605133. The reversal of 265212431605125 is 521506134212562.

265212431605125 is a `hidden beast` number, since 2 + 6 + 5 + 2 + 1 + 2 + 4 + 31 + 605 + 1 + 2 + 5 = 666.

265212431605125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 265212431605125 - 2¹³ = 265212431596933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 208731087 + ... + 209997836.

It is an arithmetic number, because the mean of its divisors is an integer number (9977891529996).

Almost surely, 2^{265212431605125} is an apocalyptic number.

265212431605125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

265212431605125 is a deficient number, since it is larger than the sum of its proper divisors (213726361834683).

265212431605125 is a wasteful number, since it uses less digits than its factorization.

265212431605125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418729507 (or 418729494 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

Adding to 265212431605125 its reverse (521506134212562), we get a palindrome (786718565817687).

The spelling of 265212431605125 in words is "two hundred sixty-five trillion, two hundred twelve billion, four hundred thirty-one million, six hundred five thousand, one hundred twenty-five".