425501424 has 100 divisors (see below), whose sum is σ = 1236119544. Its totient is φ = 141305472.

The previous prime is 425501423. The next prime is 425501431. The reversal of 425501424 is 424105524.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425501423) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 514099 + ... + 514925.

Almost surely, 2^425501424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425501424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (618059772).

425501424 is an abundant number, since it is smaller than the sum of its proper divisors (810618120).

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

425501424 is a wasteful number, since it uses less digits than its factorization.

425501424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244 (or 1229 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 425501424 is about 20627.6858614824. The cubic root of 425501424 is about 752.1428636827.

Adding to 425501424 its reverse (424105524), we get a palindrome (849606948).

The spelling of 425501424 in words is "four hundred twenty-five million, five hundred one thousand, four hundred twenty-four".