25123005004020 has 384 divisors, whose sum is σ = 92438181642240. Its totient is φ = 4945249720320.

The previous prime is 25123005003979. The next prime is 25123005004063. The reversal of 25123005004020 is 2040050032152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5331949 + ... + 8869931.

It is an arithmetic number, because the mean of its divisors is an integer number (240724431360).

Almost surely, 2^{25123005004020} is an apocalyptic number.

25123005004020 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 25123005004020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46219090821120).

25123005004020 is an abundant number, since it is smaller than the sum of its proper divisors (67315176638220).

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

25123005004020 is a wasteful number, since it uses less digits than its factorization.

25123005004020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3538095 (or 3538093 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 25123005004020 its reverse (2040050032152), we get a palindrome (27163055036172).

The spelling of 25123005004020 in words is "twenty-five trillion, one hundred twenty-three billion, five million, four thousand, twenty".