25635112064 has 16 divisors (see below), whose sum is σ = 51069950070. Its totient is φ = 12817555968.

The previous prime is 25635112051. The next prime is 25635112103. The reversal of 25635112064 is 46021153652.

It can be written as a sum of positive squares in only one way, i.e., 20955457600 + 4679654464 = 144760^2 + 68408^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100137029 + ... + 100137284.

Almost surely, 2^25635112064 is an apocalyptic number.

It is an amenable number.

25635112064 is a deficient number, since it is larger than the sum of its proper divisors (25434838006).

25635112064 is an equidigital number, since it uses as much as digits as its factorization.

25635112064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200274327 (or 200274315 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 25635112064 in words is "twenty-five billion, six hundred thirty-five million, one hundred twelve thousand, sixty-four".