425479549 has 8 divisors (see below), whose sum is σ = 464442048. Its totient is φ = 386564160.

The previous prime is 425479529. The next prime is 425479567. The reversal of 425479549 is 945974524.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 425479549 - 2⁵ = 425479517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425479529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8664 + ... + 30430.

It is an arithmetic number, because the mean of its divisors is an integer number (58055256).

Almost surely, 2^425479549 is an apocalyptic number.

It is an amenable number.

425479549 is a deficient number, since it is larger than the sum of its proper divisors (38962499).

425479549 is a wasteful number, since it uses less digits than its factorization.

425479549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23555.

The product of its digits is 1814400, while the sum is 49.

The square root of 425479549 is about 20627.1556206860. The cubic root of 425479549 is about 752.1299742569.

It can be divided in two parts, 425 and 479549, that added together give a palindrome (479974).

The spelling of 425479549 in words is "four hundred twenty-five million, four hundred seventy-nine thousand, five hundred forty-nine".