451925641 has 2 divisors, whose sum is σ = 451925642. Its totient is φ = 451925640.

The previous prime is 451925629. The next prime is 451925701. The reversal of 451925641 is 146529154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 376166025 + 75759616 = 19395^2 + 8704^2 .

It is a cyclic number.

It is not a de Polignac number, because 451925641 - 2⁵ = 451925609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 451925641.

It is not a weakly prime, because it can be changed into another prime (451925041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225962820 + 225962821.

It is an arithmetic number, because the mean of its divisors is an integer number (225962821).

Almost surely, 2^451925641 is an apocalyptic number.

It is an amenable number.

451925641 is a deficient number, since it is larger than the sum of its proper divisors (1).

451925641 is an equidigital number, since it uses as much as digits as its factorization.

451925641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 37.

The square root of 451925641 is about 21258.5427769638. The cubic root of 451925641 is about 767.4009412838.

The spelling of 451925641 in words is "four hundred fifty-one million, nine hundred twenty-five thousand, six hundred forty-one".