6211622453 has 4 divisors (see below), whose sum is σ = 6214509708. Its totient is φ = 6208735200.

The previous prime is 6211622449. The next prime is 6211622477. The reversal of 6211622453 is 3542261126.

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 934035844 + 5277586609 = 30562^2 + 72647^2 .

It is a cyclic number.

It is not a de Polignac number, because 6211622453 - 2² = 6211622449 is a prime.

It is a super-2 number, since 2×6211622453² = 77168506997227474418, 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 (6211621453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440398 + ... + 1444703.

It is an arithmetic number, because the mean of its divisors is an integer number (1553627427).

Almost surely, 2^6211622453 is an apocalyptic number.

It is an amenable number.

6211622453 is a deficient number, since it is larger than the sum of its proper divisors (2887255).

6211622453 is a wasteful number, since it uses less digits than its factorization.

6211622453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887254.

The product of its digits is 17280, while the sum is 32.

The square root of 6211622453 is about 78813.8468354388. The cubic root of 6211622453 is about 1838.2377634921.

Adding to 6211622453 its reverse (3542261126), we get a palindrome (9753883579).

The spelling of 6211622453 in words is "six billion, two hundred eleven million, six hundred twenty-two thousand, four hundred fifty-three".