25614205420 has 12 divisors (see below), whose sum is σ = 53789831424. Its totient is φ = 10245682160.

The previous prime is 25614205367. The next prime is 25614205423. The reversal of 25614205420 is 2450241652.

It is not an unprimeable number, because it can be changed into a prime (25614205423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640355116 + ... + 640355155.

It is an arithmetic number, because the mean of its divisors is an integer number (4482485952).

Almost surely, 2^25614205420 is an apocalyptic number.

25614205420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25614205420 is an abundant number, since it is smaller than the sum of its proper divisors (28175626004).

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

25614205420 is a wasteful number, since it uses less digits than its factorization.

25614205420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280710280 (or 1280710278 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 25614205420 in words is "twenty-five billion, six hundred fourteen million, two hundred five thousand, four hundred twenty".