25398607242 has 8 divisors (see below), whose sum is σ = 50797214496. Its totient is φ = 8466202412.

The previous prime is 25398607231. The next prime is 25398607301. The reversal of 25398607242 is 24270689352.

It is a sphenic number, since it is the product of 3 distinct primes.

25398607242 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 25398607191 and 25398607200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2116550598 + ... + 2116550609.

It is an arithmetic number, because the mean of its divisors is an integer number (6349651812).

Almost surely, 2^25398607242 is an apocalyptic number.

25398607242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25398607242 is a wasteful number, since it uses less digits than its factorization.

25398607242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4233101212.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 25398607242 in words is "twenty-five billion, three hundred ninety-eight million, six hundred seven thousand, two hundred forty-two".