25320254011 has 16 divisors (see below), whose sum is σ = 27941618880. Its totient is φ = 22795476480.

The previous prime is 25320254009. The next prime is 25320254021. The reversal of 25320254011 is 11045202352.

It is a cyclic number.

It is not a de Polignac number, because 25320254011 - 2¹ = 25320254009 is a prime.

It is a super-2 number, since 2×25320254011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25320254021) 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 15 ways as a sum of consecutive naturals, for example, 2608455 + ... + 2618143.

It is an arithmetic number, because the mean of its divisors is an integer number (1746351180).

Almost surely, 2^25320254011 is an apocalyptic number.

25320254011 is a deficient number, since it is larger than the sum of its proper divisors (2621364869).

25320254011 is a wasteful number, since it uses less digits than its factorization.

25320254011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14646.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 25320254011 its reverse (11045202352), we get a palindrome (36365456363).

The spelling of 25320254011 in words is "twenty-five billion, three hundred twenty million, two hundred fifty-four thousand, eleven".