25402044014 has 16 divisors (see below), whose sum is σ = 38205129600. Its totient is φ = 12667024824.

The previous prime is 25402044013. The next prime is 25402044029. The reversal of 25402044014 is 41044020452.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25402044013) 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, 3208649 + ... + 3216555.

It is an arithmetic number, because the mean of its divisors is an integer number (2387820600).

Almost surely, 2^25402044014 is an apocalyptic number.

25402044014 is a deficient number, since it is larger than the sum of its proper divisors (12803085586).

25402044014 is a wasteful number, since it uses less digits than its factorization.

25402044014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12007.

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 25402044014 its reverse (41044020452), we get a palindrome (66446064466).

The spelling of 25402044014 in words is "twenty-five billion, four hundred two million, forty-four thousand, fourteen".