25040136506001 has 4 divisors (see below), whose sum is σ = 33386848674672. Its totient is φ = 16693424337332.

The previous prime is 25040136505957. The next prime is 25040136506017. The reversal of 25040136506001 is 10060563104052.

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 25040136506001 - 2¹¹ = 25040136503953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25040136506071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4173356084331 + ... + 4173356084336.

It is an arithmetic number, because the mean of its divisors is an integer number (8346712168668).

Almost surely, 2^{25040136506001} is an apocalyptic number.

It is an amenable number.

25040136506001 is a deficient number, since it is larger than the sum of its proper divisors (8346712168671).

25040136506001 is an equidigital number, since it uses as much as digits as its factorization.

25040136506001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8346712168670.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 25040136506001 in words is "twenty-five trillion, forty billion, one hundred thirty-six million, five hundred six thousand, one".