25213047246 has 24 divisors (see below), whose sum is σ = 55443618984. Its totient is φ = 8278910640.

The previous prime is 25213047241. The next prime is 25213047283. The reversal of 25213047246 is 64274031252.

25213047246 is a `hidden beast` number, since 2 + 52 + 130 + 472 + 4 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 25213047246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25213047241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10451965 + ... + 10454376.

It is an arithmetic number, because the mean of its divisors is an integer number (2310150791).

Almost surely, 2^25213047246 is an apocalyptic number.

25213047246 is an abundant number, since it is smaller than the sum of its proper divisors (30230571738).

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

25213047246 is a wasteful number, since it uses less digits than its factorization.

25213047246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20906416 (or 20906413 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

Adding to 25213047246 its reverse (64274031252), we get a palindrome (89487078498).

The spelling of 25213047246 in words is "twenty-five billion, two hundred thirteen million, forty-seven thousand, two hundred forty-six".