425220365 has 4 divisors (see below), whose sum is σ = 510264444. Its totient is φ = 340176288.

The previous prime is 425220329. The next prime is 425220377. The reversal of 425220365 is 563022524.

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

It can be written as a sum of positive squares in 2 ways, for example, as 165817129 + 259403236 = 12877^2 + 16106^2 .

It is a cyclic number.

It is not a de Polignac number, because 425220365 - 2¹⁸ = 424958221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 42522032 + ... + 42522041.

It is an arithmetic number, because the mean of its divisors is an integer number (127566111).

Almost surely, 2^425220365 is an apocalyptic number.

It is an amenable number.

425220365 is a deficient number, since it is larger than the sum of its proper divisors (85044079).

425220365 is an equidigital number, since it uses as much as digits as its factorization.

425220365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85044078.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 425220365 is about 20620.8720717626. The cubic root of 425220365 is about 751.9772213986.

Adding to 425220365 its reverse (563022524), we get a palindrome (988242889).

The spelling of 425220365 in words is "four hundred twenty-five million, two hundred twenty thousand, three hundred sixty-five".