25255301540 has 48 divisors (see below), whose sum is σ = 60717965952. Its totient is φ = 8643926016.

The previous prime is 25255301521. The next prime is 25255301573. The reversal of 25255301540 is 4510355252.

It is a junction number, because it is equal to n+sod(n) for n = 25255301497 and 25255301506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75542 + ... + 237101.

It is an arithmetic number, because the mean of its divisors is an integer number (1264957624).

Almost surely, 2^25255301540 is an apocalyptic number.

25255301540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25255301540 is an abundant number, since it is smaller than the sum of its proper divisors (35462664412).

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

25255301540 is a wasteful number, since it uses less digits than its factorization.

25255301540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313236 (or 313234 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

Adding to 25255301540 its reverse (4510355252), we get a palindrome (29765656792).

The spelling of 25255301540 in words is "twenty-five billion, two hundred fifty-five million, three hundred one thousand, five hundred forty".