25432412140 has 12 divisors (see below), whose sum is σ = 53408065536. Its totient is φ = 10172964848.

The previous prime is 25432412087. The next prime is 25432412177. The reversal of 25432412140 is 4121423452.

It is a super-3 number, since 3×25432412140³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25432412099 and 25432412108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635810284 + ... + 635810323.

It is an arithmetic number, because the mean of its divisors is an integer number (4450672128).

Almost surely, 2^25432412140 is an apocalyptic number.

25432412140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25432412140 is an abundant number, since it is smaller than the sum of its proper divisors (27975653396).

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

25432412140 is a wasteful number, since it uses less digits than its factorization.

25432412140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271620616 (or 1271620614 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 25432412140 its reverse (4121423452), we get a palindrome (29553835592).

The spelling of 25432412140 in words is "twenty-five billion, four hundred thirty-two million, four hundred twelve thousand, one hundred forty".