25135423401 has 8 divisors (see below), whose sum is σ = 36560615904. Its totient is φ = 15233589920.

The previous prime is 25135423351. The next prime is 25135423403. The reversal of 25135423401 is 10432453152.

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 25135423401 - 2¹³ = 25135415209 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25135423403) 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, 380839716 + ... + 380839781.

It is an arithmetic number, because the mean of its divisors is an integer number (4570076988).

Almost surely, 2^25135423401 is an apocalyptic number.

It is an amenable number.

25135423401 is a deficient number, since it is larger than the sum of its proper divisors (11425192503).

25135423401 is a wasteful number, since it uses less digits than its factorization.

25135423401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761679511.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 25135423401 its reverse (10432453152), we get a palindrome (35567876553).

The spelling of 25135423401 in words is "twenty-five billion, one hundred thirty-five million, four hundred twenty-three thousand, four hundred one".