25053420133421 has 4 divisors (see below), whose sum is σ = 25055263530144. Its totient is φ = 25051576736700.

The previous prime is 25053420133393. The next prime is 25053420133453. The reversal of 25053420133421 is 12433102435052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25053420133421 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 (25053420333421) 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, 921677975 + ... + 921705156.

It is an arithmetic number, because the mean of its divisors is an integer number (6263815882536).

Almost surely, 2^{25053420133421} is an apocalyptic number.

It is an amenable number.

25053420133421 is a deficient number, since it is larger than the sum of its proper divisors (1843396723).

25053420133421 is a wasteful number, since it uses less digits than its factorization.

25053420133421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843396722.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 25053420133421 its reverse (12433102435052), we get a palindrome (37486522568473).

The spelling of 25053420133421 in words is "twenty-five trillion, fifty-three billion, four hundred twenty million, one hundred thirty-three thousand, four hundred twenty-one".