25643360957260 has 24 divisors (see below), whose sum is σ = 53939774770560. Its totient is φ = 10240445952384.

The previous prime is 25643360957257. The next prime is 25643360957261. The reversal of 25643360957260 is 6275906334652.

It is a super-2 number, since 2×25643360957260² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25643360957195 and 25643360957204.

It is not an unprimeable number, because it can be changed into a prime (25643360957261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1056139465 + ... + 1056163744.

It is an arithmetic number, because the mean of its divisors is an integer number (2247490615440).

Almost surely, 2^{25643360957260} is an apocalyptic number.

25643360957260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25643360957260 is an abundant number, since it is smaller than the sum of its proper divisors (28296413813300).

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

25643360957260 is a wasteful number, since it uses less digits than its factorization.

25643360957260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112303825 (or 2112303823 counting only the distinct ones).

The product of its (nonzero) digits is 48988800, while the sum is 58.

The spelling of 25643360957260 in words is "twenty-five trillion, six hundred forty-three billion, three hundred sixty million, nine hundred fifty-seven thousand, two hundred sixty".