25321026040 has 32 divisors (see below), whose sum is σ = 60323622480. Its totient is φ = 9532621312.

The previous prime is 25321026037. The next prime is 25321026067. The reversal of 25321026040 is 4062012352.

It is a junction number, because it is equal to n+sod(n) for n = 25321025996 and 25321026014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18617722 + ... + 18619081.

Almost surely, 2^25321026040 is an apocalyptic number.

25321026040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25321026040 is an abundant number, since it is smaller than the sum of its proper divisors (35002596440).

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

25321026040 is a wasteful number, since it uses less digits than its factorization.

25321026040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37236831 (or 37236827 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 25321026040 its reverse (4062012352), we get a palindrome (29383038392).

The spelling of 25321026040 in words is "twenty-five billion, three hundred twenty-one million, twenty-six thousand, forty".