5209315529731 has 4 divisors (see below), whose sum is σ = 5209323655464. Its totient is φ = 5209307404000.

The previous prime is 5209315529633. The next prime is 5209315529767. The reversal of 5209315529731 is 1379255139025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5209315529731 - 2²³ = 5209307141123 is a prime.

It is a super-2 number, since 2×5209315529731² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5209615529731) 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, 3010345 + ... + 4413706.

It is an arithmetic number, because the mean of its divisors is an integer number (1302330913866).

Almost surely, 2^{5209315529731} is an apocalyptic number.

5209315529731 is a deficient number, since it is larger than the sum of its proper divisors (8125733).

5209315529731 is an equidigital number, since it uses as much as digits as its factorization.

5209315529731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8125732.

The product of its (nonzero) digits is 2551500, while the sum is 52.

The spelling of 5209315529731 in words is "five trillion, two hundred nine billion, three hundred fifteen million, five hundred twenty-nine thousand, seven hundred thirty-one".