25533142401 has 16 divisors (see below), whose sum is σ = 38819620224. Its totient is φ = 14788425984.

The previous prime is 25533142391. The next prime is 25533142429. The reversal of 25533142401 is 10424133552.

It is not a de Polignac number, because 25533142401 - 2²⁵ = 25499587969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25533142501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19255101 + ... + 19256426.

It is an arithmetic number, because the mean of its divisors is an integer number (2426226264).

Almost surely, 2^25533142401 is an apocalyptic number.

It is an amenable number.

25533142401 is a deficient number, since it is larger than the sum of its proper divisors (13286477823).

25533142401 is a wasteful number, since it uses less digits than its factorization.

25533142401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38511560.

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

Adding to 25533142401 its reverse (10424133552), we get a palindrome (35957275953).

The spelling of 25533142401 in words is "twenty-five billion, five hundred thirty-three million, one hundred forty-two thousand, four hundred one".