25202405625055 has 8 divisors (see below), whose sum is σ = 30269817199152. Its totient is φ = 20143970867328.

The previous prime is 25202405625049. The next prime is 25202405625077. The reversal of 25202405625055 is 55052650420252.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25202405625055 is a prime.

It is a super-2 number, since 2×25202405625055² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2244197914 + ... + 2244209143.

It is an arithmetic number, because the mean of its divisors is an integer number (3783727149894).

Almost surely, 2^{25202405625055} is an apocalyptic number.

25202405625055 is a deficient number, since it is larger than the sum of its proper divisors (5067411574097).

25202405625055 is a wasteful number, since it uses less digits than its factorization.

25202405625055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4488408185.

The product of its (nonzero) digits is 1200000, while the sum is 43.

The spelling of 25202405625055 in words is "twenty-five trillion, two hundred two billion, four hundred five million, six hundred twenty-five thousand, fifty-five".