25036130421543 has 32 divisors (see below), whose sum is σ = 34137354977280. Its totient is φ = 16316942987520.

The previous prime is 25036130421541. The next prime is 25036130421571. The reversal of 25036130421543 is 34512403163052.

It is not a de Polignac number, because 25036130421543 - 2¹ = 25036130421541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25036130421541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48135571 + ... + 48652907.

It is an arithmetic number, because the mean of its divisors is an integer number (1066792343040).

Almost surely, 2^{25036130421543} is an apocalyptic number.

25036130421543 is a deficient number, since it is larger than the sum of its proper divisors (9101224555737).

25036130421543 is a wasteful number, since it uses less digits than its factorization.

25036130421543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519327.

The product of its (nonzero) digits is 259200, while the sum is 39.

Adding to 25036130421543 its reverse (34512403163052), we get a palindrome (59548533584595).

The spelling of 25036130421543 in words is "twenty-five trillion, thirty-six billion, one hundred thirty million, four hundred twenty-one thousand, five hundred forty-three".