25620111706220 has 48 divisors (see below), whose sum is σ = 54005152148640. Its totient is φ = 10209433488384.

The previous prime is 25620111706169. The next prime is 25620111706249. The reversal of 25620111706220 is 2260711102652.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9073316 + ... + 11557044.

It is an arithmetic number, because the mean of its divisors is an integer number (1125107336430).

Almost surely, 2^{25620111706220} is an apocalyptic number.

25620111706220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25620111706220 is an abundant number, since it is smaller than the sum of its proper divisors (28385040442420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25620111706220 is a wasteful number, since it uses less digits than its factorization.

25620111706220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2485682 (or 2485680 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

Adding to 25620111706220 its reverse (2260711102652), we get a palindrome (27880822808872).

The spelling of 25620111706220 in words is "twenty-five trillion, six hundred twenty billion, one hundred eleven million, seven hundred six thousand, two hundred twenty".