25125250541 has 4 divisors (see below), whose sum is σ = 25127877084. Its totient is φ = 25122624000.

The previous prime is 25125250519. The next prime is 25125250547. The reversal of 25125250541 is 14505252152.

It is a happy number.

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 18774754441 + 6350496100 = 137021^2 + 79690^2 .

It is a cyclic number.

It is not a de Polignac number, because 25125250541 - 2¹⁰ = 25125249517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25125250498 and 25125250507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25125250547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1298870 + ... + 1318071.

It is an arithmetic number, because the mean of its divisors is an integer number (6281969271).

Almost surely, 2^25125250541 is an apocalyptic number.

It is an amenable number.

25125250541 is a deficient number, since it is larger than the sum of its proper divisors (2626543).

25125250541 is an equidigital number, since it uses as much as digits as its factorization.

25125250541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626542.

The product of its (nonzero) digits is 20000, while the sum is 32.

The spelling of 25125250541 in words is "twenty-five billion, one hundred twenty-five million, two hundred fifty thousand, five hundred forty-one".