451425375225 has 216 divisors, whose sum is σ = 943916981280. Its totient is φ = 205491686400.

The previous prime is 451425375169. The next prime is 451425375241. The reversal of 451425375225 is 522573524154.

It is a happy number.

451425375225 is a `hidden beast` number, since 4 + 5 + 1 + 42 + 537 + 52 + 25 = 666.

451425375225 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 451425375225 - 2⁷ = 451425375097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 58448214 + ... + 58455936.

Almost surely, 2^451425375225 is an apocalyptic number.

451425375225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

451425375225 is an abundant number, since it is smaller than the sum of its proper divisors (492491606055).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

451425375225 is a wasteful number, since it uses less digits than its factorization.

451425375225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7893 (or 7874 counting only the distinct ones).

The product of its digits is 1680000, while the sum is 45.

Adding to 451425375225 its reverse (522573524154), we get a palindrome (973998899379).

The spelling of 451425375225 in words is "four hundred fifty-one billion, four hundred twenty-five million, three hundred seventy-five thousand, two hundred twenty-five".