1725455563 has 4 divisors (see below), whose sum is σ = 1858182928. Its totient is φ = 1592728200.

The previous prime is 1725455551. The next prime is 1725455639. The reversal of 1725455563 is 3655545271.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3655545271 = 7 ⋅522220753.

It is a cyclic number.

It is not a de Polignac number, because 1725455563 - 2²¹ = 1723358411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1725455533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66363663 + ... + 66363688.

It is an arithmetic number, because the mean of its divisors is an integer number (464545732).

Almost surely, 2^1725455563 is an apocalyptic number.

1725455563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1725455563 is a deficient number, since it is larger than the sum of its proper divisors (132727365).

1725455563 is a wasteful number, since it uses less digits than its factorization.

1725455563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132727364.

The product of its digits is 630000, while the sum is 43.

The square root of 1725455563 is about 41538.6032865815. The cubic root of 1725455563 is about 1199.4107206259.

The spelling of 1725455563 in words is "one billion, seven hundred twenty-five million, four hundred fifty-five thousand, five hundred sixty-three".