425220252 has 24 divisors (see below), whose sum is σ = 1050544656. Its totient is φ = 133402368.

The previous prime is 425220221. The next prime is 425220281. The reversal of 425220252 is 252022524.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 1042003 + ... + 1042410.

It is an arithmetic number, because the mean of its divisors is an integer number (43772694).

Almost surely, 2^425220252 is an apocalyptic number.

It is an amenable number.

425220252 is an abundant number, since it is smaller than the sum of its proper divisors (625324404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425220252 is a wasteful number, since it uses less digits than its factorization.

425220252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2084437 (or 2084435 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 425220252 is about 20620.8693318201. The cubic root of 425220252 is about 751.9771547874.

Adding to 425220252 its reverse (252022524), we get a palindrome (677242776).

The spelling of 425220252 in words is "four hundred twenty-five million, two hundred twenty thousand, two hundred fifty-two".