25654614140 has 12 divisors (see below), whose sum is σ = 53874689736. Its totient is φ = 10261845648.

The previous prime is 25654614101. The next prime is 25654614149. The reversal of 25654614140 is 4141645652.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25654614094 and 25654614103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25654614149) 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, 641365334 + ... + 641365373.

It is an arithmetic number, because the mean of its divisors is an integer number (4489557478).

Almost surely, 2^25654614140 is an apocalyptic number.

25654614140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25654614140 is an abundant number, since it is smaller than the sum of its proper divisors (28220075596).

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

25654614140 is a wasteful number, since it uses less digits than its factorization.

25654614140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282730716 (or 1282730714 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 25654614140 in words is "twenty-five billion, six hundred fifty-four million, six hundred fourteen thousand, one hundred forty".