531212955 has 32 divisors (see below), whose sum is σ = 1046083584. Its totient is φ = 224159616.

The previous prime is 531212953. The next prime is 531212971. The reversal of 531212955 is 559212135.

It is not a de Polignac number, because 531212955 - 2¹ = 531212953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (531212951) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193219 + ... + 195948.

It is an arithmetic number, because the mean of its divisors is an integer number (32690112).

Almost surely, 2^531212955 is an apocalyptic number.

531212955 is a deficient number, since it is larger than the sum of its proper divisors (514870629).

531212955 is a wasteful number, since it uses less digits than its factorization.

531212955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389195.

The product of its digits is 13500, while the sum is 33.

The square root of 531212955 is about 23048.0575103413. The cubic root of 531212955 is about 809.8841245611.

The spelling of 531212955 in words is "five hundred thirty-one million, two hundred twelve thousand, nine hundred fifty-five".