425221245 has 40 divisors (see below), whose sum is σ = 766934784. Its totient is φ = 225390816.

The previous prime is 425221243. The next prime is 425221249. The reversal of 425221245 is 542122524.

It is not a de Polignac number, because 425221245 - 2¹ = 425221243 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 not an unprimeable number, because it can be changed into a prime (425221241) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 64492 + ... + 70778.

Almost surely, 2^425221245 is an apocalyptic number.

425221245 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

425221245 is a deficient number, since it is larger than the sum of its proper divisors (341713539).

425221245 is a wasteful number, since it uses less digits than its factorization.

425221245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6471 (or 6462 counting only the distinct ones).

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

The square root of 425221245 is about 20620.8934093555. The cubic root of 425221245 is about 751.9777401410.

Adding to 425221245 its reverse (542122524), we get a palindrome (967343769).

The spelling of 425221245 in words is "four hundred twenty-five million, two hundred twenty-one thousand, two hundred forty-five".