3225451421 has 4 divisors (see below), whose sum is σ = 3266280000. Its totient is φ = 3184622844.

The previous prime is 3225451393. The next prime is 3225451423. The reversal of 3225451421 is 1241545223.

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-3225451421 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 (3225451423) 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, 20414171 + ... + 20414328.

It is an arithmetic number, because the mean of its divisors is an integer number (816570000).

Almost surely, 2^3225451421 is an apocalyptic number.

It is an amenable number.

3225451421 is a deficient number, since it is larger than the sum of its proper divisors (40828579).

3225451421 is an equidigital number, since it uses as much as digits as its factorization.

3225451421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40828578.

The product of its digits is 9600, while the sum is 29.

The square root of 3225451421 is about 56793.0578592137. The cubic root of 3225451421 is about 1477.5091137709.

Adding to 3225451421 its reverse (1241545223), we get a palindrome (4466996644).

The spelling of 3225451421 in words is "three billion, two hundred twenty-five million, four hundred fifty-one thousand, four hundred twenty-one".