25563102213 has 32 divisors (see below), whose sum is σ = 37798451712. Its totient is φ = 15236971200.

The previous prime is 25563102211. The next prime is 25563102239. The reversal of 25563102213 is 31220136552.

It is not a de Polignac number, because 25563102213 - 2¹ = 25563102211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25563102211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1412683 + ... + 1430663.

It is an arithmetic number, because the mean of its divisors is an integer number (1181201616).

Almost surely, 2^25563102213 is an apocalyptic number.

It is an amenable number.

25563102213 is a deficient number, since it is larger than the sum of its proper divisors (12235349499).

25563102213 is a wasteful number, since it uses less digits than its factorization.

25563102213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18705.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 25563102213 its reverse (31220136552), we get a palindrome (56783238765).

The spelling of 25563102213 in words is "twenty-five billion, five hundred sixty-three million, one hundred two thousand, two hundred thirteen".