25321064235 has 8 divisors (see below), whose sum is σ = 40513702800. Its totient is φ = 13504567584.

The previous prime is 25321064233. The next prime is 25321064281. The reversal of 25321064235 is 53246012352.

It is a happy number.

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

It is not a de Polignac number, because 25321064235 - 2¹ = 25321064233 is a prime.

It is a super-2 number, since 2×25321064235² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25321064196 and 25321064205.

It is not an unprimeable number, because it can be changed into a prime (25321064231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 844035460 + ... + 844035489.

It is an arithmetic number, because the mean of its divisors is an integer number (5064212850).

Almost surely, 2^25321064235 is an apocalyptic number.

25321064235 is a deficient number, since it is larger than the sum of its proper divisors (15192638565).

25321064235 is a wasteful number, since it uses less digits than its factorization.

25321064235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688070957.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 25321064235 its reverse (53246012352), we get a palindrome (78567076587).

The spelling of 25321064235 in words is "twenty-five billion, three hundred twenty-one million, sixty-four thousand, two hundred thirty-five".