47618563 has 2 divisors, whose sum is σ = 47618564. Its totient is φ = 47618562.

The previous prime is 47618537. The next prime is 47618603. The reversal of 47618563 is 36581674.

It is a happy number.

It is an a-pointer prime, because the next prime (47618603) can be obtained adding 47618563 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47618563 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (47618663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23809281 + 23809282.

It is an arithmetic number, because the mean of its divisors is an integer number (23809282).

Almost surely, 2^47618563 is an apocalyptic number.

47618563 is a deficient number, since it is larger than the sum of its proper divisors (1).

47618563 is an equidigital number, since it uses as much as digits as its factorization.

47618563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The square root of 47618563 is about 6900.6204793482. The cubic root of 47618563 is about 362.4588947446.

The spelling of 47618563 in words is "forty-seven million, six hundred eighteen thousand, five hundred sixty-three".