425514322451 has 4 divisors (see below), whose sum is σ = 425558249400. Its totient is φ = 425470395504.

The previous prime is 425514322319. The next prime is 425514322463. The reversal of 425514322451 is 154223415524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425514322451 is a prime.

It is a super-2 number, since 2×425514322451² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425511322451) 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, 21948941 + ... + 21968318.

It is an arithmetic number, because the mean of its divisors is an integer number (106389562350).

Almost surely, 2^425514322451 is an apocalyptic number.

425514322451 is a deficient number, since it is larger than the sum of its proper divisors (43926949).

425514322451 is an equidigital number, since it uses as much as digits as its factorization.

425514322451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43926948.

The product of its digits is 192000, while the sum is 38.

Adding to 425514322451 its reverse (154223415524), we get a palindrome (579737737975).

The spelling of 425514322451 in words is "four hundred twenty-five billion, five hundred fourteen million, three hundred twenty-two thousand, four hundred fifty-one".