25901801043 has 8 divisors (see below), whose sum is σ = 35121086400. Its totient is φ = 16975191528.

The previous prime is 25901801041. The next prime is 25901801047. The reversal of 25901801043 is 34010810952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25901801043 - 2¹ = 25901801041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25901800995 and 25901801013.

It is not an unprimeable number, because it can be changed into a prime (25901801041) 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 7 ways as a sum of consecutive naturals, for example, 73168753 + ... + 73169106.

It is an arithmetic number, because the mean of its divisors is an integer number (4390135800).

Almost surely, 2^25901801043 is an apocalyptic number.

25901801043 is a deficient number, since it is larger than the sum of its proper divisors (9219285357).

25901801043 is a wasteful number, since it uses less digits than its factorization.

25901801043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146337921.

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 25901801043 in words is "twenty-five billion, nine hundred one million, eight hundred one thousand, forty-three".