531553340 has 24 divisors (see below), whose sum is σ = 1118169360. Its totient is φ = 212258048.

The previous prime is 531553339. The next prime is 531553343. The reversal of 531553340 is 43355135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531553343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10550 + ... + 34269.

It is an arithmetic number, because the mean of its divisors is an integer number (46590390).

Almost surely, 2^531553340 is an apocalyptic number.

It is an amenable number.

531553340 is an abundant number, since it is smaller than the sum of its proper divisors (586616020).

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

531553340 is a wasteful number, since it uses less digits than its factorization.

531553340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45421 (or 45419 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 531553340 is about 23055.4405726718. The cubic root of 531553340 is about 810.0570706118.

The spelling of 531553340 in words is "five hundred thirty-one million, five hundred fifty-three thousand, three hundred forty".