531612265427 has 4 divisors (see below), whose sum is σ = 562883575176. Its totient is φ = 500340955680.

The previous prime is 531612265421. The next prime is 531612265433. The reversal of 531612265427 is 724562216135.

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

It is an interprime number because it is at equal distance from previous prime (531612265421) and next prime (531612265433).

It is a cyclic number.

It is not a de Polignac number, because 531612265427 - 2²² = 531608071123 is a prime.

It is a super-2 number, since 2×531612265427² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531612265421) 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, 15635654849 + ... + 15635654882.

It is an arithmetic number, because the mean of its divisors is an integer number (140720893794).

Almost surely, 2^531612265427 is an apocalyptic number.

531612265427 is a deficient number, since it is larger than the sum of its proper divisors (31271309749).

531612265427 is a wasteful number, since it uses less digits than its factorization.

531612265427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31271309748.

The product of its digits is 604800, while the sum is 44.

The spelling of 531612265427 in words is "five hundred thirty-one billion, six hundred twelve million, two hundred sixty-five thousand, four hundred twenty-seven".