425201321354521 has 4 divisors (see below), whose sum is σ = 425215143227152. Its totient is φ = 425187499481892.

The previous prime is 425201321354449. The next prime is 425201321354527. The reversal of 425201321354521 is 125453123102524.

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-425201321354521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425201321354527) 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, 6910890171 + ... + 6910951696.

It is an arithmetic number, because the mean of its divisors is an integer number (106303785806788).

Almost surely, 2^{425201321354521} is an apocalyptic number.

It is an amenable number.

425201321354521 is a deficient number, since it is larger than the sum of its proper divisors (13821872631).

425201321354521 is a wasteful number, since it uses less digits than its factorization.

425201321354521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13821872630.

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 425201321354521 in words is "four hundred twenty-five trillion, two hundred one billion, three hundred twenty-one million, three hundred fifty-four thousand, five hundred twenty-one".