451378425 has 24 divisors (see below), whose sum is σ = 749007616. Its totient is φ = 239855040.

The previous prime is 451378423. The next prime is 451378457. The reversal of 451378425 is 524873154.

It is not a de Polignac number, because 451378425 - 2¹ = 451378423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451378423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9912 + ... + 31638.

Almost surely, 2^451378425 is an apocalyptic number.

It is an amenable number.

451378425 is a deficient number, since it is larger than the sum of its proper divisors (297629191).

451378425 is a wasteful number, since it uses less digits than its factorization.

451378425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22017 (or 22012 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 451378425 is about 21245.6683820491. The cubic root of 451378425 is about 767.0910793343.

The spelling of 451378425 in words is "four hundred fifty-one million, three hundred seventy-eight thousand, four hundred twenty-five".