425554 has 4 divisors (see below), whose sum is σ = 638334. Its totient is φ = 212776.

The previous prime is 425549. The next prime is 425563. The reversal of 425554 is 455524.

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

It can be written as a sum of positive squares in only one way, i.e., 227529 + 198025 = 477^2 + 445^2 .

It is an unprimeable number.

425554 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106387 + ... + 106390.

2⁴²⁵⁵⁵⁴ is an apocalyptic number.

425554 is a deficient number, since it is larger than the sum of its proper divisors (212780).

425554 is a wasteful number, since it uses less digits than its factorization.

425554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212779.

The product of its digits is 4000, while the sum is 25.

The square root of 425554 is about 652.3450007473. The cubic root of 425554 is about 75.2173841279.

It can be divided in two parts, 425 and 554, that added together give a palindrome (979).

The spelling of 425554 in words is "four hundred twenty-five thousand, five hundred fifty-four".