25320340040520 has 192 divisors, whose sum is σ = 90242880295680. Its totient is φ = 5664367801344.

The previous prime is 25320340040483. The next prime is 25320340040537. The reversal of 25320340040520 is 2504004302352.

It is a super-2 number, since 2×25320340040520² (a number of 28 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45534069 + ... + 46086788.

It is an arithmetic number, because the mean of its divisors is an integer number (470015001540).

Almost surely, 2^{25320340040520} is an apocalyptic number.

25320340040520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25320340040520 is an abundant number, since it is smaller than the sum of its proper divisors (64922540255160).

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

25320340040520 is a wasteful number, since it uses less digits than its factorization.

25320340040520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91620932 (or 91620921 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 25320340040520 its reverse (2504004302352), we get a palindrome (27824344342872).

The spelling of 25320340040520 in words is "twenty-five trillion, three hundred twenty billion, three hundred forty million, forty thousand, five hundred twenty".