20623053253 has 8 divisors (see below), whose sum is σ = 22782660480. Its totient is φ = 18510910080.

The previous prime is 20623053233. The next prime is 20623053257. The reversal of 20623053253 is 35235032602.

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 20623053253 - 2⁵ = 20623053221 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 (20623053257) 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, 11865100 + ... + 11866837.

It is an arithmetic number, because the mean of its divisors is an integer number (2847832560).

Almost surely, 2^20623053253 is an apocalyptic number.

It is an amenable number.

20623053253 is a deficient number, since it is larger than the sum of its proper divisors (2159607227).

20623053253 is a wasteful number, since it uses less digits than its factorization.

20623053253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23732027.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 20623053253 its reverse (35235032602), we get a palindrome (55858085855).

The spelling of 20623053253 in words is "twenty billion, six hundred twenty-three million, fifty-three thousand, two hundred fifty-three".