25218030829 has 16 divisors (see below), whose sum is σ = 26854502400. Its totient is φ = 23631543936.

The previous prime is 25218030779. The next prime is 25218030833. The reversal of 25218030829 is 92803081252.

It is not a de Polignac number, because 25218030829 - 2¹⁵ = 25217998061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25218030791 and 25218030800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25218030889) 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, 166612 + ... + 279634.

It is an arithmetic number, because the mean of its divisors is an integer number (1678406400).

Almost surely, 2^25218030829 is an apocalyptic number.

It is an amenable number.

25218030829 is a deficient number, since it is larger than the sum of its proper divisors (1636471571).

25218030829 is a wasteful number, since it uses less digits than its factorization.

25218030829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113244.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 25218030829 in words is "twenty-five billion, two hundred eighteen million, thirty thousand, eight hundred twenty-nine".