531450049 has 4 divisors (see below), whose sum is σ = 572330836. Its totient is φ = 490569264.

The previous prime is 531450047. The next prime is 531450089. The reversal of 531450049 is 940054135.

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 29376400 + 502073649 = 5420^2 + 22407^2 .

It is a cyclic number.

It is not a de Polignac number, because 531450049 - 2¹ = 531450047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 531450049.

It is not an unprimeable number, because it can be changed into a prime (531450047) 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, 20440374 + ... + 20440399.

It is an arithmetic number, because the mean of its divisors is an integer number (143082709).

Almost surely, 2^531450049 is an apocalyptic number.

It is an amenable number.

531450049 is a deficient number, since it is larger than the sum of its proper divisors (40880787).

531450049 is a wasteful number, since it uses less digits than its factorization.

531450049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40880786.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 531450049 is about 23053.2004068849. The cubic root of 531450049 is about 810.0045973422.

The spelling of 531450049 in words is "five hundred thirty-one million, four hundred fifty thousand, forty-nine".