531485015 has 16 divisors (see below), whose sum is σ = 643410432. Its totient is φ = 421451424.

The previous prime is 531485011. The next prime is 531485033. The reversal of 531485015 is 510584135.

It is a cyclic number.

It is not a de Polignac number, because 531485015 - 2² = 531485011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531485011) 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 15 ways as a sum of consecutive naturals, for example, 405992 + ... + 407298.

It is an arithmetic number, because the mean of its divisors is an integer number (40213152).

Almost surely, 2^531485015 is an apocalyptic number.

531485015 is a deficient number, since it is larger than the sum of its proper divisors (111925417).

531485015 is a wasteful number, since it uses less digits than its factorization.

531485015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1966.

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 531485015 is about 23053.9587706754. The cubic root of 531485015 is about 810.0223613194.

The spelling of 531485015 in words is "five hundred thirty-one million, four hundred eighty-five thousand, fifteen".