546769561 has 4 divisors (see below), whose sum is σ = 588828772. Its totient is φ = 504710352.

The previous prime is 546769549. The next prime is 546769583. The reversal of 546769561 is 165967645.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87310336 + 459459225 = 9344^2 + 21435^2 .

It is a cyclic number.

It is not a de Polignac number, because 546769561 - 2⁹ = 546769049 is a prime.

It is a super-2 number, since 2×546769561² = 597913905672265442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (546769541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21029586 + ... + 21029611.

It is an arithmetic number, because the mean of its divisors is an integer number (147207193).

Almost surely, 2^546769561 is an apocalyptic number.

It is an amenable number.

546769561 is a deficient number, since it is larger than the sum of its proper divisors (42059211).

546769561 is a wasteful number, since it uses less digits than its factorization.

546769561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42059210.

The product of its digits is 1360800, while the sum is 49.

The square root of 546769561 is about 23383.1041780171. The cubic root of 546769561 is about 817.7140182894.

The spelling of 546769561 in words is "five hundred forty-six million, seven hundred sixty-nine thousand, five hundred sixty-one".