451474075625 has 20 divisors (see below), whose sum is σ = 564715361364. Its totient is φ = 360825000000.

The previous prime is 451474075621. The next prime is 451474075649. The reversal of 451474075625 is 526570474154.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 392543600089 + 58930475536 = 626533^2 + 242756^2 .

It is not a de Polignac number, because 451474075625 - 2² = 451474075621 is a prime.

It is a super-2 number, since 2×451474075625² (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 (451474075621) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 284375 + ... + 991875.

Almost surely, 2^451474075625 is an apocalyptic number.

It is an amenable number.

451474075625 is a deficient number, since it is larger than the sum of its proper divisors (113241285739).

451474075625 is an equidigital number, since it uses as much as digits as its factorization.

451474075625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708542 (or 708527 counting only the distinct ones).

The product of its (nonzero) digits is 4704000, while the sum is 50.

The spelling of 451474075625 in words is "four hundred fifty-one billion, four hundred seventy-four million, seventy-five thousand, six hundred twenty-five".