53556773 has 2 divisors, whose sum is σ = 53556774. Its totient is φ = 53556772.

The previous prime is 53556761. The next prime is 53556781. The reversal of 53556773 is 37765535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52157284 + 1399489 = 7222^2 + 1183^2 .

It is a cyclic number.

It is not a de Polignac number, because 53556773 - 2¹⁶ = 53491237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53556773.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53556473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26778386 + 26778387.

It is an arithmetic number, because the mean of its divisors is an integer number (26778387).

Almost surely, 2^53556773 is an apocalyptic number.

It is an amenable number.

53556773 is a deficient number, since it is larger than the sum of its proper divisors (1).

53556773 is an equidigital number, since it uses as much as digits as its factorization.

53556773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 330750, while the sum is 41.

The square root of 53556773 is about 7318.2493125064. The cubic root of 53556773 is about 376.9393411120.

The spelling of 53556773 in words is "fifty-three million, five hundred fifty-six thousand, seven hundred seventy-three".