425555349 has 4 divisors (see below), whose sum is σ = 567407136. Its totient is φ = 283703564.

The previous prime is 425555341. The next prime is 425555353. The reversal of 425555349 is 943555524.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 425555349 - 2³ = 425555341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 425555349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425555341) 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 3 ways as a sum of consecutive naturals, for example, 70925889 + ... + 70925894.

It is an arithmetic number, because the mean of its divisors is an integer number (141851784).

Almost surely, 2^425555349 is an apocalyptic number.

It is an amenable number.

425555349 is a deficient number, since it is larger than the sum of its proper divisors (141851787).

425555349 is a wasteful number, since it uses less digits than its factorization.

425555349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141851786.

The product of its digits is 540000, while the sum is 42.

The square root of 425555349 is about 20628.9929225835. The cubic root of 425555349 is about 752.1746360720.

The spelling of 425555349 in words is "four hundred twenty-five million, five hundred fifty-five thousand, three hundred forty-nine".