4540559623 has 2 divisors, whose sum is σ = 4540559624. Its totient is φ = 4540559622.

The previous prime is 4540559539. The next prime is 4540559657. The reversal of 4540559623 is 3269550454.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4540559623 - 2²¹ = 4538462471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4540559623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4540559663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2270279811 + 2270279812.

It is an arithmetic number, because the mean of its divisors is an integer number (2270279812).

Almost surely, 2^4540559623 is an apocalyptic number.

4540559623 is a deficient number, since it is larger than the sum of its proper divisors (1).

4540559623 is an equidigital number, since it uses as much as digits as its factorization.

4540559623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648000, while the sum is 43.

The square root of 4540559623 is about 67383.6747513817. The cubic root of 4540559623 is about 1655.9089785547.

The spelling of 4540559623 in words is "four billion, five hundred forty million, five hundred fifty-nine thousand, six hundred twenty-three".