25001545405133 has 4 divisors (see below), whose sum is σ = 27274413169248. Its totient is φ = 22728677641020.

The previous prime is 25001545405117. The next prime is 25001545405157. The reversal of 25001545405133 is 33150454510052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25001545405133 - 2⁴ = 25001545405117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25001545405433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1136433882041 + ... + 1136433882062.

It is an arithmetic number, because the mean of its divisors is an integer number (6818603292312).

Almost surely, 2^{25001545405133} is an apocalyptic number.

It is an amenable number.

25001545405133 is a deficient number, since it is larger than the sum of its proper divisors (2272867764115).

25001545405133 is a wasteful number, since it uses less digits than its factorization.

25001545405133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272867764114.

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 25001545405133 its reverse (33150454510052), we get a palindrome (58151999915185).

The spelling of 25001545405133 in words is "twenty-five trillion, one billion, five hundred forty-five million, four hundred five thousand, one hundred thirty-three".