425223405 has 16 divisors (see below), whose sum is σ = 755952960. Its totient is φ = 226785744.

The previous prime is 425223391. The next prime is 425223413. The reversal of 425223405 is 504322524.

It is a happy number.

425223405 is a `hidden beast` number, since 4 + 252 + 2 + 3 + 405 = 666.

It is not a de Polignac number, because 425223405 - 2⁴ = 425223389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1574767 + ... + 1575036.

It is an arithmetic number, because the mean of its divisors is an integer number (47247060).

Almost surely, 2^425223405 is an apocalyptic number.

425223405 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

425223405 is a deficient number, since it is larger than the sum of its proper divisors (330729555).

425223405 is a wasteful number, since it uses less digits than its factorization.

425223405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3149817 (or 3149811 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 425223405 is about 20620.9457833534. The cubic root of 425223405 is about 751.9790134148.

Adding to 425223405 its reverse (504322524), we get a palindrome (929545929).

The spelling of 425223405 in words is "four hundred twenty-five million, two hundred twenty-three thousand, four hundred five".