25325432241420 has 384 divisors, whose sum is σ = 75043853402112. Its totient is φ = 6373745280000.

The previous prime is 25325432241407. The next prime is 25325432241443. The reversal of 25325432241420 is 2414223452352.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5525948449 + ... + 5525953031.

It is an arithmetic number, because the mean of its divisors is an integer number (195426701568).

Almost surely, 2^{25325432241420} is an apocalyptic number.

25325432241420 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 25325432241420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37521926701056).

25325432241420 is an abundant number, since it is smaller than the sum of its proper divisors (49718421160692).

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

25325432241420 is a wasteful number, since it uses less digits than its factorization.

25325432241420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5141 (or 5139 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 39.

Adding to 25325432241420 its reverse (2414223452352), we get a palindrome (27739655693772).

The spelling of 25325432241420 in words is "twenty-five trillion, three hundred twenty-five billion, four hundred thirty-two million, two hundred forty-one thousand, four hundred twenty".