635425713253 has 8 divisors (see below), whose sum is σ = 654089263128. Its totient is φ = 617009362944.

The previous prime is 635425713199. The next prime is 635425713283. The reversal of 635425713253 is 352317524536.

It can be written as a sum of positive squares in 4 ways, for example, as 271422244324 + 364003468929 = 520982^2 + 603327^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 635425713253 - 2²¹ = 635423616101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (635425713283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61794676 + ... + 61804957.

It is an arithmetic number, because the mean of its divisors is an integer number (81761157891).

Almost surely, 2^635425713253 is an apocalyptic number.

It is an amenable number.

635425713253 is a deficient number, since it is larger than the sum of its proper divisors (18663549875).

635425713253 is a wasteful number, since it uses less digits than its factorization.

635425713253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123599783.

The product of its digits is 2268000, while the sum is 46.

The spelling of 635425713253 in words is "six hundred thirty-five billion, four hundred twenty-five million, seven hundred thirteen thousand, two hundred fifty-three".