25205101221252 has 24 divisors (see below), whose sum is σ = 60246339505632. Its totient is φ = 8196780884800.

The previous prime is 25205101221239. The next prime is 25205101221259. The reversal of 25205101221252 is 25212210150252.

It is not an unprimeable number, because it can be changed into a prime (25205101221259) 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, 25614939774 + ... + 25614940757.

It is an arithmetic number, because the mean of its divisors is an integer number (2510264146068).

Almost surely, 2^{25205101221252} is an apocalyptic number.

It is an amenable number.

25205101221252 is an abundant number, since it is smaller than the sum of its proper divisors (35041238284380).

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

25205101221252 is a wasteful number, since it uses less digits than its factorization.

25205101221252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51229880579 (or 51229880577 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 25205101221252 in words is "twenty-five trillion, two hundred five billion, one hundred one million, two hundred twenty-one thousand, two hundred fifty-two".