6625631453 has 4 divisors (see below), whose sum is σ = 7572150240. Its totient is φ = 5679112668.

The previous prime is 6625631431. The next prime is 6625631461. The reversal of 6625631453 is 3541365266.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6625631453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6625631453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6625631473) 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, 473259383 + ... + 473259396.

It is an arithmetic number, because the mean of its divisors is an integer number (1893037560).

Almost surely, 2^6625631453 is an apocalyptic number.

It is an amenable number.

6625631453 is a deficient number, since it is larger than the sum of its proper divisors (946518787).

6625631453 is an equidigital number, since it uses as much as digits as its factorization.

6625631453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946518786.

The product of its digits is 388800, while the sum is 41.

The square root of 6625631453 is about 81397.9818730170. The cubic root of 6625631453 is about 1878.2025461056.

The spelling of 6625631453 in words is "six billion, six hundred twenty-five million, six hundred thirty-one thousand, four hundred fifty-three".