531235405051530 has 32 divisors (see below), whose sum is σ = 1284697529172288. Its totient is φ = 140581379452800.

The previous prime is 531235405051459. The next prime is 531235405051537. The reversal of 531235405051530 is 35150504532135.

It is a super-2 number, since 2×531235405051530² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (531235405051537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67587197731 + ... + 67587205590.

It is an arithmetic number, because the mean of its divisors is an integer number (40146797786634).

Almost surely, 2^{531235405051530} is an apocalyptic number.

531235405051530 is an abundant number, since it is smaller than the sum of its proper divisors (753462124120758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531235405051530 is a wasteful number, since it uses less digits than its factorization.

531235405051530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135174403462.

The product of its (nonzero) digits is 675000, while the sum is 42.

Adding to 531235405051530 its reverse (35150504532135), we get a palindrome (566385909583665).

The spelling of 531235405051530 in words is "five hundred thirty-one trillion, two hundred thirty-five billion, four hundred five million, fifty-one thousand, five hundred thirty".