1425544451 has 4 divisors (see below), whose sum is σ = 1455875232. Its totient is φ = 1395213672.

The previous prime is 1425544433. The next prime is 1425544453. The reversal of 1425544451 is 1544455241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1425544451 - 2²⁶ = 1358435587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1425544453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15165320 + ... + 15165413.

It is an arithmetic number, because the mean of its divisors is an integer number (363968808).

Almost surely, 2^1425544451 is an apocalyptic number.

1425544451 is a deficient number, since it is larger than the sum of its proper divisors (30330781).

1425544451 is an equidigital number, since it uses as much as digits as its factorization.

1425544451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30330780.

The product of its digits is 64000, while the sum is 35.

The square root of 1425544451 is about 37756.3829173294. The cubic root of 1425544451 is about 1125.4518549660.

Adding to 1425544451 its reverse (1544455241), we get a palindrome (2969999692).

The spelling of 1425544451 in words is "one billion, four hundred twenty-five million, five hundred forty-four thousand, four hundred fifty-one".