25000065000043 has 4 divisors (see below), whose sum is σ = 28571502857200. Its totient is φ = 21428627142888.

The previous prime is 25000064999971. The next prime is 25000065000077. The reversal of 25000065000043 is 34000056000052.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25000065000043 - 2²¹ = 25000062902891 is a prime.

It is the 5000007-th Hogben number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25000064999981 and 25000065000017.

It is not an unprimeable number, because it can be changed into a prime (25000065000083) by changing a digit.

It is a nontrivial repunit in base 5000006.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1785718928568 + ... + 1785718928581.

It is an arithmetic number, because the mean of its divisors is an integer number (7142875714300).

Almost surely, 2^{25000065000043} is an apocalyptic number.

25000065000043 is a deficient number, since it is larger than the sum of its proper divisors (3571437857157).

25000065000043 is an equidigital number, since it uses as much as digits as its factorization.

25000065000043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3571437857156.

The product of its (nonzero) digits is 3600, while the sum is 25.

The spelling of 25000065000043 in words is "twenty-five trillion, sixty-five million, forty-three", and thus it is an aban number and an uban number.