451020425 has 6 divisors (see below), whose sum is σ = 559265358. Its totient is φ = 360816320.

The previous prime is 451020419. The next prime is 451020463. The reversal of 451020425 is 524020154.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 6190144 + 444830281 = 2488^2 + 21091^2 .

It is a de Polignac number, because none of the positive numbers 2^k-451020425 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 451020425.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9020384 + ... + 9020433.

It is an arithmetic number, because the mean of its divisors is an integer number (93210893).

Almost surely, 2^451020425 is an apocalyptic number.

It is an amenable number.

451020425 is a deficient number, since it is larger than the sum of its proper divisors (108244933).

451020425 is a wasteful number, since it uses less digits than its factorization.

451020425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18040827 (or 18040822 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 451020425 is about 21237.2414639943. The cubic root of 451020425 is about 766.8882257155. Note that the first 3 decimals are identical.

Adding to 451020425 its reverse (524020154), we get a palindrome (975040579).

The spelling of 451020425 in words is "four hundred fifty-one million, twenty thousand, four hundred twenty-five".