25312054045 has 4 divisors (see below), whose sum is σ = 30374464860. Its totient is φ = 20249643232.

The previous prime is 25312054007. The next prime is 25312054057. The reversal of 25312054045 is 54045021352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7577006116 + 17735047929 = 87046^2 + 133173^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25312054045 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25312053998 and 25312054016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2531205400 + ... + 2531205409.

It is an arithmetic number, because the mean of its divisors is an integer number (7593616215).

Almost surely, 2^25312054045 is an apocalyptic number.

It is an amenable number.

25312054045 is a deficient number, since it is larger than the sum of its proper divisors (5062410815).

25312054045 is an equidigital number, since it uses as much as digits as its factorization.

25312054045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5062410814.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 25312054045 its reverse (54045021352), we get a palindrome (79357075397).

The spelling of 25312054045 in words is "twenty-five billion, three hundred twelve million, fifty-four thousand, forty-five".