205454304002425 has 48 divisors (see below), whose sum is σ = 263313830430000. Its totient is φ = 158923580211200.

The previous prime is 205454304002419. The next prime is 205454304002473. The reversal of 205454304002425 is 524200403454502.

It can be written as a sum of positive squares in 24 ways, for example, as 203934165424704 + 1520138577721 = 14280552^2 + 1232939^2 .

It is not a de Polignac number, because 205454304002425 - 2⁹ = 205454304001913 is a prime.

It is a super-2 number, since 2×205454304002425² (a number of 29 digits) contains 22 as substring.

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, 67075467 + ... + 70071583.

It is an arithmetic number, because the mean of its divisors is an integer number (5485704800625).

Almost surely, 2^{205454304002425} is an apocalyptic number.

205454304002425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205454304002425 is a deficient number, since it is larger than the sum of its proper divisors (57859526427575).

205454304002425 is a wasteful number, since it uses less digits than its factorization.

205454304002425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2996766 (or 2996761 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 40.

Adding to 205454304002425 its reverse (524200403454502), we get a palindrome (729654707456927).

The spelling of 205454304002425 in words is "two hundred five trillion, four hundred fifty-four billion, three hundred four million, two thousand, four hundred twenty-five".