265403454252 has 12 divisors (see below), whose sum is σ = 619274726616. Its totient is φ = 88467818080.

The previous prime is 265403454193. The next prime is 265403454259. The reversal of 265403454252 is 252454304562.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (265403454259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11058477249 + ... + 11058477272.

It is an arithmetic number, because the mean of its divisors is an integer number (51606227218).

Almost surely, 2^265403454252 is an apocalyptic number.

It is an amenable number.

265403454252 is an abundant number, since it is smaller than the sum of its proper divisors (353871272364).

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

265403454252 is a wasteful number, since it uses less digits than its factorization.

265403454252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22116954528 (or 22116954526 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 42.

The spelling of 265403454252 in words is "two hundred sixty-five billion, four hundred three million, four hundred fifty-four thousand, two hundred fifty-two".