25213510432223 has 4 divisors (see below), whose sum is σ = 25214004565488. Its totient is φ = 25213016298960.

The previous prime is 25213510432151. The next prime is 25213510432241. The reversal of 25213510432223 is 32223401531252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25213510432223 is a prime.

It is a super-2 number, since 2×25213510432223² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25213510434223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246990086 + ... + 247092147.

It is an arithmetic number, because the mean of its divisors is an integer number (6303501141372).

Almost surely, 2^{25213510432223} is an apocalyptic number.

25213510432223 is a deficient number, since it is larger than the sum of its proper divisors (494133265).

25213510432223 is an equidigital number, since it uses as much as digits as its factorization.

25213510432223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494133264.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 25213510432223 its reverse (32223401531252), we get a palindrome (57436911963475).

The spelling of 25213510432223 in words is "twenty-five trillion, two hundred thirteen billion, five hundred ten million, four hundred thirty-two thousand, two hundred twenty-three".