25014044013 has 16 divisors (see below), whose sum is σ = 39773884416. Its totient is φ = 13672272240.

The previous prime is 25014043963. The next prime is 25014044017. The reversal of 25014044013 is 31044041052.

It is not a de Polignac number, because 25014044013 - 2¹⁸ = 25013781869 is a prime.

It is a super-2 number, since 2×25014044013² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25014044017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25893973 + ... + 25894938.

It is an arithmetic number, because the mean of its divisors is an integer number (2485867776).

Almost surely, 2^25014044013 is an apocalyptic number.

25014044013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

25014044013 is a deficient number, since it is larger than the sum of its proper divisors (14759840403).

25014044013 is a wasteful number, since it uses less digits than its factorization.

25014044013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51788944.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 25014044013 its reverse (31044041052), we get a palindrome (56058085065).

The spelling of 25014044013 in words is "twenty-five billion, fourteen million, forty-four thousand, thirteen".