473521549 has 2 divisors, whose sum is σ = 473521550. Its totient is φ = 473521548.

The previous prime is 473521511. The next prime is 473521561. The reversal of 473521549 is 945125374.

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., 352125225 + 121396324 = 18765^2 + 11018^2 .

It is a cyclic number.

It is not a de Polignac number, because 473521549 - 2²⁷ = 339303821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (473522549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236760774 + 236760775.

It is an arithmetic number, because the mean of its divisors is an integer number (236760775).

Almost surely, 2^473521549 is an apocalyptic number.

It is an amenable number.

473521549 is a deficient number, since it is larger than the sum of its proper divisors (1).

473521549 is an equidigital number, since it uses as much as digits as its factorization.

473521549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 40.

The square root of 473521549 is about 21760.5502917550. The cubic root of 473521549 is about 779.4350220536.

The spelling of 473521549 in words is "four hundred seventy-three million, five hundred twenty-one thousand, five hundred forty-nine".