25403120202541 has 16 divisors (see below), whose sum is σ = 27278248808448. Its totient is φ = 23600105042800.

The previous prime is 25403120202529. The next prime is 25403120202547. The reversal of 25403120202541 is 14520202130452.

It is a happy number.

It is not a de Polignac number, because 25403120202541 - 2⁷ = 25403120202413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25403120202547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89551705 + ... + 89834926.

It is an arithmetic number, because the mean of its divisors is an integer number (1704890550528).

Almost surely, 2^{25403120202541} is an apocalyptic number.

It is an amenable number.

25403120202541 is a deficient number, since it is larger than the sum of its proper divisors (1875128605907).

25403120202541 is a wasteful number, since it uses less digits than its factorization.

25403120202541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179386832.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 25403120202541 its reverse (14520202130452), we get a palindrome (39923322332993).

The spelling of 25403120202541 in words is "twenty-five trillion, four hundred three billion, one hundred twenty million, two hundred two thousand, five hundred forty-one".