25240144213242 has 40 divisors (see below), whose sum is σ = 64636136506656. Its totient is φ = 7211469774888.

The previous prime is 25240144213217. The next prime is 25240144213259. The reversal of 25240144213242 is 24231244104252.

25240144213242 is a `hidden beast` number, since 2 + 5 + 2 + 40 + 1 + 442 + 132 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 25240144213197 and 25240144213206.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11128810248 + ... + 11128812515.

Almost surely, 2^{25240144213242} is an apocalyptic number.

25240144213242 is an abundant number, since it is smaller than the sum of its proper divisors (39395992293414).

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

25240144213242 is a wasteful number, since it uses less digits than its factorization.

25240144213242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22257622784 (or 22257622775 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 36.

Adding to 25240144213242 its reverse (24231244104252), we get a palindrome (49471388317494).

The spelling of 25240144213242 in words is "twenty-five trillion, two hundred forty billion, one hundred forty-four million, two hundred thirteen thousand, two hundred forty-two".