25042535105440 has 96 divisors (see below), whose sum is σ = 64336223793744. Its totient is φ = 9172973076480.

The previous prime is 25042535105431. The next prime is 25042535105453. The reversal of 25042535105440 is 4450153524052.

It can be written as a sum of positive squares in 8 ways, for example, as 22290824771856 + 2751710333584 = 4721316^2 + 1658828^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 25042535105393 and 25042535105402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124315771 + ... + 124517050.

Almost surely, 2^{25042535105440} is an apocalyptic number.

25042535105440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25042535105440 is an abundant number, since it is smaller than the sum of its proper divisors (39293688688304).

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

25042535105440 is a wasteful number, since it uses less digits than its factorization.

25042535105440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248832890 (or 248832882 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 40.

Adding to 25042535105440 its reverse (4450153524052), we get a palindrome (29492688629492).

The spelling of 25042535105440 in words is "twenty-five trillion, forty-two billion, five hundred thirty-five million, one hundred five thousand, four hundred forty".