25401135200 has 72 divisors (see below), whose sum is σ = 70869182832. Its totient is φ = 8708958720.

The previous prime is 25401135161. The next prime is 25401135211. The reversal of 25401135200 is 253110452.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2262359 + ... + 2273558.

It is an arithmetic number, because the mean of its divisors is an integer number (984294206).

Almost surely, 2^25401135200 is an apocalyptic number.

25401135200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25401135200 is an abundant number, since it is smaller than the sum of its proper divisors (45468047632).

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

25401135200 is a wasteful number, since it uses less digits than its factorization.

25401135200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4535944 (or 4535931 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 25401135200 its reverse (253110452), we get a palindrome (25654245652).

The spelling of 25401135200 in words is "twenty-five billion, four hundred one million, one hundred thirty-five thousand, two hundred".