425521024 has 32 divisors (see below), whose sum is σ = 855667800. Its totient is φ = 210765312.

The previous prime is 425521021. The next prime is 425521037. The reversal of 425521024 is 420125524.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 425521024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425521021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1839 + ... + 29230.

Almost surely, 2^425521024 is an apocalyptic number.

It is an amenable number.

425521024 is an abundant number, since it is smaller than the sum of its proper divisors (430146776).

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

425521024 is a wasteful number, since it uses less digits than its factorization.

425521024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31190 (or 31178 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 425521024 is about 20628.1609456587. The cubic root of 425521024 is about 752.1544122330.

Adding to 425521024 its reverse (420125524), we get a palindrome (845646548).

The spelling of 425521024 in words is "four hundred twenty-five million, five hundred twenty-one thousand, twenty-four".