25303240321255 has 16 divisors (see below), whose sum is σ = 32700564669024. Its totient is φ = 18684902597760.

The previous prime is 25303240321253. The next prime is 25303240321349. The reversal of 25303240321255 is 55212304230352.

It is not a de Polignac number, because 25303240321255 - 2¹ = 25303240321253 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 (25303240321253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3744181 + ... + 8038990.

It is an arithmetic number, because the mean of its divisors is an integer number (2043785291814).

Almost surely, 2^{25303240321255} is an apocalyptic number.

25303240321255 is a deficient number, since it is larger than the sum of its proper divisors (7397324347769).

25303240321255 is a wasteful number, since it uses less digits than its factorization.

25303240321255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11816226.

The product of its (nonzero) digits is 216000, while the sum is 37.

The spelling of 25303240321255 in words is "twenty-five trillion, three hundred three billion, two hundred forty million, three hundred twenty-one thousand, two hundred fifty-five".