635425252 has 48 divisors (see below), whose sum is σ = 1467946368. Its totient is φ = 233003520.

The previous prime is 635425247. The next prime is 635425261. The reversal of 635425252 is 252524536.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 55443 + ... + 65914.

It is an arithmetic number, because the mean of its divisors is an integer number (30582216).

Almost surely, 2^635425252 is an apocalyptic number.

It is an amenable number.

635425252 is an abundant number, since it is smaller than the sum of its proper divisors (832521116).

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

635425252 is a wasteful number, since it uses less digits than its factorization.

635425252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121396 (or 121394 counting only the distinct ones).

The product of its digits is 72000, while the sum is 34.

The square root of 635425252 is about 25207.6427299341. The cubic root of 635425252 is about 859.7156315983.

Adding to 635425252 its reverse (252524536), we get a palindrome (887949788).

The spelling of 635425252 in words is "six hundred thirty-five million, four hundred twenty-five thousand, two hundred fifty-two".