83563545 has 16 divisors (see below), whose sum is σ = 143986752. Its totient is φ = 41138880.

The previous prime is 83563541. The next prime is 83563567. The reversal of 83563545 is 54536538.

It is not a de Polignac number, because 83563545 - 2² = 83563541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (83563541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214071 + ... + 214460.

It is an arithmetic number, because the mean of its divisors is an integer number (8999172).

Almost surely, 2^83563545 is an apocalyptic number.

It is an amenable number.

83563545 is a deficient number, since it is larger than the sum of its proper divisors (60423207).

83563545 is a wasteful number, since it uses less digits than its factorization.

83563545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428552.

The product of its digits is 216000, while the sum is 39.

The square root of 83563545 is about 9141.3098076807. The cubic root of 83563545 is about 437.1920793850.

The spelling of 83563545 in words is "eighty-three million, five hundred sixty-three thousand, five hundred forty-five".