20377002253 has 2 divisors, whose sum is σ = 20377002254. Its totient is φ = 20377002252.

The previous prime is 20377002227. The next prime is 20377002271. The reversal of 20377002253 is 35220077302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19941111369 + 435890884 = 141213^2 + 20878^2 .

It is a cyclic number.

It is not a de Polignac number, because 20377002253 - 2⁹ = 20377001741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20377002353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10188501126 + 10188501127.

It is an arithmetic number, because the mean of its divisors is an integer number (10188501127).

Almost surely, 2^20377002253 is an apocalyptic number.

It is an amenable number.

20377002253 is a deficient number, since it is larger than the sum of its proper divisors (1).

20377002253 is an equidigital number, since it uses as much as digits as its factorization.

20377002253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 31.

Adding to 20377002253 its reverse (35220077302), we get a palindrome (55597079555).

The spelling of 20377002253 in words is "twenty billion, three hundred seventy-seven million, two thousand, two hundred fifty-three".