648056453 has 4 divisors (see below), whose sum is σ = 706970688. Its totient is φ = 589142220.

The previous prime is 648056429. The next prime is 648056477. The reversal of 648056453 is 354650846.

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 an interprime number because it is at equal distance from previous prime (648056429) and next prime (648056477).

It is a cyclic number.

It is not a de Polignac number, because 648056453 - 2¹⁴ = 648040069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 648056453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648056153) 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, 29457101 + ... + 29457122.

It is an arithmetic number, because the mean of its divisors is an integer number (176742672).

Almost surely, 2^648056453 is an apocalyptic number.

It is an amenable number.

648056453 is a deficient number, since it is larger than the sum of its proper divisors (58914235).

648056453 is a wasteful number, since it uses less digits than its factorization.

648056453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58914234.

The product of its (nonzero) digits is 345600, while the sum is 41.

The square root of 648056453 is about 25456.9529402087. The cubic root of 648056453 is about 865.3748708729.

The spelling of 648056453 in words is "six hundred forty-eight million, fifty-six thousand, four hundred fifty-three".