531513245315 has 16 divisors (see below), whose sum is σ = 687611795808. Its totient is φ = 392083151616.

The previous prime is 531513245297. The next prime is 531513245399. The reversal of 531513245315 is 513542315135.

It is not a de Polignac number, because 531513245315 - 2⁸ = 531513245059 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4302557 + ... + 4424366.

It is an arithmetic number, because the mean of its divisors is an integer number (42975737238).

Almost surely, 2^531513245315 is an apocalyptic number.

531513245315 is a deficient number, since it is larger than the sum of its proper divisors (156098550493).

531513245315 is a wasteful number, since it uses less digits than its factorization.

531513245315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8727878.

The product of its digits is 135000, while the sum is 38.

The spelling of 531513245315 in words is "five hundred thirty-one billion, five hundred thirteen million, two hundred forty-five thousand, three hundred fifteen".