25343445211172 has 12 divisors (see below), whose sum is σ = 48382940857776. Its totient is φ = 11519747823240.

The previous prime is 25343445211127. The next prime is 25343445211177. The reversal of 25343445211172 is 27111254434352.

It is a super-2 number, since 2×25343445211172² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 575987391163 = 25343445211172 / (2 + 5 + 3 + 4 + 3 + 4 + 4 + 5 + 2 + 1 + 1 + 1 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (25343445211177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287993695538 + ... + 287993695625.

It is an arithmetic number, because the mean of its divisors is an integer number (4031911738148).

Almost surely, 2^{25343445211172} is an apocalyptic number.

25343445211172 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25343445211172 is a deficient number, since it is larger than the sum of its proper divisors (23039495646604).

25343445211172 is a wasteful number, since it uses less digits than its factorization.

25343445211172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575987391178 (or 575987391176 counting only the distinct ones).

The product of its digits is 806400, while the sum is 44.

The spelling of 25343445211172 in words is "twenty-five trillion, three hundred forty-three billion, four hundred forty-five million, two hundred eleven thousand, one hundred seventy-two".