25051453545 has 32 divisors (see below), whose sum is σ = 42284465280. Its totient is φ = 12629813760.

The previous prime is 25051453543. The next prime is 25051453547. The reversal of 25051453545 is 54535415052.

It is an interprime number because it is at equal distance from previous prime (25051453543) and next prime (25051453547).

It is not a de Polignac number, because 25051453545 - 2¹ = 25051453543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25051453543) 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 31 ways as a sum of consecutive naturals, for example, 34075 + ... + 226415.

It is an arithmetic number, because the mean of its divisors is an integer number (1321389540).

Almost surely, 2^25051453545 is an apocalyptic number.

It is an amenable number.

25051453545 is a deficient number, since it is larger than the sum of its proper divisors (17233011735).

25051453545 is a wasteful number, since it uses less digits than its factorization.

25051453545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192825.

The product of its (nonzero) digits is 300000, while the sum is 39.

Adding to 25051453545 its reverse (54535415052), we get a palindrome (79586868597).

The spelling of 25051453545 in words is "twenty-five billion, fifty-one million, four hundred fifty-three thousand, five hundred forty-five".