425451521525131 has 8 divisors (see below), whose sum is σ = 435714367684464. Its totient is φ = 415205431035360.

The previous prime is 425451521525089. The next prime is 425451521525159. The reversal of 425451521525131 is 131525125154524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 425451521525131 - 2⁷ = 425451521525003 is a prime.

It is a super-2 number, since 2×425451521525131² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425451521525161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4188865996 + ... + 4188967561.

It is an arithmetic number, because the mean of its divisors is an integer number (54464295960558).

Almost surely, 2^{425451521525131} is an apocalyptic number.

425451521525131 is a deficient number, since it is larger than the sum of its proper divisors (10262846159333).

425451521525131 is a wasteful number, since it uses less digits than its factorization.

425451521525131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8377834781.

The product of its digits is 1200000, while the sum is 46.

Adding to 425451521525131 its reverse (131525125154524), we get a palindrome (556976646679655).

The spelling of 425451521525131 in words is "four hundred twenty-five trillion, four hundred fifty-one billion, five hundred twenty-one million, five hundred twenty-five thousand, one hundred thirty-one".