425555747 has 4 divisors (see below), whose sum is σ = 450588456. Its totient is φ = 400523040.

The previous prime is 425555743. The next prime is 425555783. The reversal of 425555747 is 747555524.

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 425555747 - 2² = 425555743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425555698 and 425555707.

It is not an unprimeable number, because it can be changed into a prime (425555743) 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, 12516329 + ... + 12516362.

It is an arithmetic number, because the mean of its divisors is an integer number (112647114).

Almost surely, 2^425555747 is an apocalyptic number.

425555747 is a deficient number, since it is larger than the sum of its proper divisors (25032709).

425555747 is a wasteful number, since it uses less digits than its factorization.

425555747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25032708.

The product of its digits is 980000, while the sum is 44.

The square root of 425555747 is about 20629.0025691985. The cubic root of 425555747 is about 752.1748705620.

The spelling of 425555747 in words is "four hundred twenty-five million, five hundred fifty-five thousand, seven hundred forty-seven".