25040542435 has 16 divisors (see below), whose sum is σ = 30166488576. Its totient is φ = 19954031328.

The previous prime is 25040542433. The next prime is 25040542447. The reversal of 25040542435 is 53424504052.

It is a cyclic number.

It is not a de Polignac number, because 25040542435 - 2¹ = 25040542433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25040542435.

It is not an unprimeable number, because it can be changed into a prime (25040542433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1349692 + ... + 1368118.

It is an arithmetic number, because the mean of its divisors is an integer number (1885405536).

Almost surely, 2^25040542435 is an apocalyptic number.

25040542435 is a deficient number, since it is larger than the sum of its proper divisors (5125946141).

25040542435 is a wasteful number, since it uses less digits than its factorization.

25040542435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19482.

The product of its (nonzero) digits is 96000, while the sum is 34.

The spelling of 25040542435 in words is "twenty-five billion, forty million, five hundred forty-two thousand, four hundred thirty-five".