25723416240 has 120 divisors (see below), whose sum is σ = 89587422288. Its totient is φ = 6859572480.

The previous prime is 25723416239. The next prime is 25723416253. The reversal of 25723416240 is 4261432752.

25723416240 is a `hidden beast` number, since 2 + 5 + 7 + 23 + 4 + 1 + 624 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 25723416195 and 25723416204.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 642171 + ... + 681050.

Almost surely, 2^25723416240 is an apocalyptic number.

25723416240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25723416240 is an abundant number, since it is smaller than the sum of its proper divisors (63864006048).

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

25723416240 is a wasteful number, since it uses less digits than its factorization.

25723416240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323249 (or 1323231 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

Adding to 25723416240 its reverse (4261432752), we get a palindrome (29984848992).

The spelling of 25723416240 in words is "twenty-five billion, seven hundred twenty-three million, four hundred sixteen thousand, two hundred forty".