83773553 has 2 divisors, whose sum is σ = 83773554. Its totient is φ = 83773552.

The previous prime is 83773523. The next prime is 83773577. The reversal of 83773553 is 35537738.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67354849 + 16418704 = 8207^2 + 4052^2 .

It is a cyclic number.

It is not a de Polignac number, because 83773553 - 2¹⁰ = 83772529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83773553.

It is not a weakly prime, because it can be changed into another prime (83773523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41886776 + 41886777.

It is an arithmetic number, because the mean of its divisors is an integer number (41886777).

Almost surely, 2^83773553 is an apocalyptic number.

It is an amenable number.

83773553 is a deficient number, since it is larger than the sum of its proper divisors (1).

83773553 is an equidigital number, since it uses as much as digits as its factorization.

83773553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 264600, while the sum is 41.

The square root of 83773553 is about 9152.7893562564. The cubic root of 83773553 is about 437.5580165782.

The spelling of 83773553 in words is "eighty-three million, seven hundred seventy-three thousand, five hundred fifty-three".