25220330665213 has 8 divisors (see below), whose sum is σ = 25254766294400. Its totient is φ = 25185895869888.

The previous prime is 25220330665207. The next prime is 25220330665219. The reversal of 25220330665213 is 31256603302252.

It is an interprime number because it is at equal distance from previous prime (25220330665207) and next prime (25220330665219).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25220330665213 - 2¹³ = 25220330657021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25220330665219) 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, 82839973 + ... + 83143861.

It is an arithmetic number, because the mean of its divisors is an integer number (3156845786800).

Almost surely, 2^{25220330665213} is an apocalyptic number.

It is an amenable number.

25220330665213 is a deficient number, since it is larger than the sum of its proper divisors (34435629187).

25220330665213 is a wasteful number, since it uses less digits than its factorization.

25220330665213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416931.

The product of its (nonzero) digits is 388800, while the sum is 40.

Adding to 25220330665213 its reverse (31256603302252), we get a palindrome (56476933967465).

The spelling of 25220330665213 in words is "twenty-five trillion, two hundred twenty billion, three hundred thirty million, six hundred sixty-five thousand, two hundred thirteen".