25432342140 has 96 divisors (see below), whose sum is σ = 71850240000. Its totient is φ = 6721245952.

The previous prime is 25432342121. The next prime is 25432342141. The reversal of 25432342140 is 4124323452.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 25432342098 and 25432342107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25432342141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4279291 + ... + 4285229.

It is an arithmetic number, because the mean of its divisors is an integer number (748440000).

Almost surely, 2^25432342140 is an apocalyptic number.

25432342140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25432342140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35925120000).

25432342140 is an abundant number, since it is smaller than the sum of its proper divisors (46417897860).

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

25432342140 is a wasteful number, since it uses less digits than its factorization.

25432342140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6579 (or 6577 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 25432342140 its reverse (4124323452), we get a palindrome (29556665592).

The spelling of 25432342140 in words is "twenty-five billion, four hundred thirty-two million, three hundred forty-two thousand, one hundred forty".