25423105430500 has 24 divisors (see below), whose sum is σ = 55524062261304. Its totient is φ = 10169242172000.

The previous prime is 25423105430467. The next prime is 25423105430509. The reversal of 25423105430500 is 503450132452.

It can be written as a sum of positive squares in 4 ways, for example, as 53368392256 + 25369737038244 = 231016^2 + 5036838^2 .

It is not an unprimeable number, because it can be changed into a prime (25423105430509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25423104931 + ... + 25423105930.

It is an arithmetic number, because the mean of its divisors is an integer number (2313502594221).

Almost surely, 2^{25423105430500} is an apocalyptic number.

25423105430500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25423105430500 is an abundant number, since it is smaller than the sum of its proper divisors (30100956830804).

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

25423105430500 is a wasteful number, since it uses less digits than its factorization.

25423105430500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50846210880 (or 50846210868 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 25423105430500 its reverse (503450132452), we get a palindrome (25926555562952).

The spelling of 25423105430500 in words is "twenty-five trillion, four hundred twenty-three billion, one hundred five million, four hundred thirty thousand, five hundred".