531564546 has 16 divisors (see below), whose sum is σ = 1109352384. Its totient is φ = 169484304.

The previous prime is 531564541. The next prime is 531564547. The reversal of 531564546 is 645465135.

It is a super-2 number, since 2×531564546² = 565121733128372232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (531564541) 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 7 ways as a sum of consecutive naturals, for example, 1925821 + ... + 1926096.

It is an arithmetic number, because the mean of its divisors is an integer number (69334524).

Almost surely, 2^531564546 is an apocalyptic number.

531564546 is an abundant number, since it is smaller than the sum of its proper divisors (577787838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531564546 is a wasteful number, since it uses less digits than its factorization.

531564546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3851945.

The product of its digits is 216000, while the sum is 39.

The square root of 531564546 is about 23055.6835942897. The cubic root of 531564546 is about 810.0627630074.

The spelling of 531564546 in words is "five hundred thirty-one million, five hundred sixty-four thousand, five hundred forty-six".