632220653 has 4 divisors (see below), whose sum is σ = 642584988. Its totient is φ = 621856320.

The previous prime is 632220637. The next prime is 632220671. The reversal of 632220653 is 356022236.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17825284 + 614395369 = 4222^2 + 24787^2 .

It is a cyclic number.

It is not a de Polignac number, because 632220653 - 2⁴ = 632220637 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 (632225653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5182076 + ... + 5182197.

It is an arithmetic number, because the mean of its divisors is an integer number (160646247).

Almost surely, 2^632220653 is an apocalyptic number.

It is an amenable number.

632220653 is a deficient number, since it is larger than the sum of its proper divisors (10364335).

632220653 is a wasteful number, since it uses less digits than its factorization.

632220653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10364334.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 632220653 is about 25143.9983495068. The cubic root of 632220653 is about 858.2679458112.

Adding to 632220653 its reverse (356022236), we get a palindrome (988242889).

The spelling of 632220653 in words is "six hundred thirty-two million, two hundred twenty thousand, six hundred fifty-three".