25633006145 has 8 divisors (see below), whose sum is σ = 31105221480. Its totient is φ = 20275995520.

The previous prime is 25633006093. The next prime is 25633006151. The reversal of 25633006145 is 54160033652.

It can be written as a sum of positive squares in 4 ways, for example, as 182547121 + 25450459024 = 13511^2 + 159532^2 .

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

It is not a de Polignac number, because 25633006145 - 2⁶ = 25633006081 is a prime.

It is a super-2 number, since 2×25633006145² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28800686 + ... + 28801575.

It is an arithmetic number, because the mean of its divisors is an integer number (3888152685).

Almost surely, 2^25633006145 is an apocalyptic number.

It is an amenable number.

25633006145 is a deficient number, since it is larger than the sum of its proper divisors (5472215335).

25633006145 is an equidigital number, since it uses as much as digits as its factorization.

25633006145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57602355.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 25633006145 its reverse (54160033652), we get a palindrome (79793039797).

The spelling of 25633006145 in words is "twenty-five billion, six hundred thirty-three million, six thousand, one hundred forty-five".