632820253 has 8 divisors (see below), whose sum is σ = 693050400. Its totient is φ = 574240368.

The previous prime is 632820241. The next prime is 632820269. The reversal of 632820253 is 352028236.

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

It is a de Polignac number, because none of the positive numbers 2^k-632820253 is a prime.

It is a super-2 number, since 2×632820253² = 800922945213968018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (632820233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411763 + ... + 413296.

It is an arithmetic number, because the mean of its divisors is an integer number (86631300).

Almost surely, 2^632820253 is an apocalyptic number.

It is an amenable number.

632820253 is a deficient number, since it is larger than the sum of its proper divisors (60230147).

632820253 is a wasteful number, since it uses less digits than its factorization.

632820253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825131.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 632820253 is about 25155.9188462676. The cubic root of 632820253 is about 858.5391880615.

Adding to 632820253 its reverse (352028236), we get a palindrome (984848489).

The spelling of 632820253 in words is "six hundred thirty-two million, eight hundred twenty thousand, two hundred fifty-three".