25042320520000 has 140 divisors (see below), whose sum is σ = 70967790662560. Its totient is φ = 8585938368000.

The previous prime is 25042320519959. The next prime is 25042320520001. The reversal of 25042320520000 is 2502324052.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (140).

It is a super-3 number, since 3×25042320520000³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25042320520001) 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 19 ways as a sum of consecutive naturals, for example, 44438430 + ... + 44998429.

Almost surely, 2^{25042320520000} is an apocalyptic number.

25042320520000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25042320520000 is an abundant number, since it is smaller than the sum of its proper divisors (45925470142560).

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

25042320520000 is an frugal number, since it uses more digits than its factorization.

25042320520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89436898 (or 89436873 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 25042320520000 its reverse (2502324052), we get a palindrome (25044822844052).

The spelling of 25042320520000 in words is "twenty-five trillion, forty-two billion, three hundred twenty million, five hundred twenty thousand".