546661531 has 16 divisors (see below), whose sum is σ = 594397440. Its totient is φ = 499766400.

The previous prime is 546661501. The next prime is 546661567. The reversal of 546661531 is 135166645.

It is a cyclic number.

It is not a de Polignac number, because 546661531 - 2⁷ = 546661403 is a prime.

It is a super-2 number, since 2×546661531² = 597677658950527922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (546661501) 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, 779481 + ... + 780181.

It is an arithmetic number, because the mean of its divisors is an integer number (37149840).

Almost surely, 2^546661531 is an apocalyptic number.

546661531 is a deficient number, since it is larger than the sum of its proper divisors (47735909).

546661531 is a wasteful number, since it uses less digits than its factorization.

546661531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206.

The product of its digits is 64800, while the sum is 37.

The square root of 546661531 is about 23380.7940626489. The cubic root of 546661531 is about 817.6601604608.

The spelling of 546661531 in words is "five hundred forty-six million, six hundred sixty-one thousand, five hundred thirty-one".