25402502550401 has 8 divisors (see below), whose sum is σ = 25469852950080. Its totient is φ = 25335237030768.

The previous prime is 25402502550377. The next prime is 25402502550409. The reversal of 25402502550401 is 10405520520452.

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

It is a cyclic number.

It is not a de Polignac number, because 25402502550401 - 2⁴² = 21004456039297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25402502550409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20620646 + ... + 21817791.

It is an arithmetic number, because the mean of its divisors is an integer number (3183731618760).

Almost surely, 2^{25402502550401} is an apocalyptic number.

It is an amenable number.

25402502550401 is a deficient number, since it is larger than the sum of its proper divisors (67350399679).

25402502550401 is an equidigital number, since it uses as much as digits as its factorization.

25402502550401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42440023.

The product of its (nonzero) digits is 80000, while the sum is 35.

The spelling of 25402502550401 in words is "twenty-five trillion, four hundred two billion, five hundred two million, five hundred fifty thousand, four hundred one".