531430251225 has 48 divisors (see below), whose sum is σ = 889790668800. Its totient is φ = 279851457600.

The previous prime is 531430251097. The next prime is 531430251229. The reversal of 531430251225 is 522152034135.

It is not a de Polignac number, because 531430251225 - 2⁷ = 531430251097 is a prime.

It is a super-2 number, since 2×531430251225² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (531430251229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1819272 + ... + 2091078.

It is an arithmetic number, because the mean of its divisors is an integer number (18537305600).

Almost surely, 2^531430251225 is an apocalyptic number.

It is an amenable number.

531430251225 is a deficient number, since it is larger than the sum of its proper divisors (358360417575).

531430251225 is a wasteful number, since it uses less digits than its factorization.

531430251225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272150 (or 272145 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 531430251225 in words is "five hundred thirty-one billion, four hundred thirty million, two hundred fifty-one thousand, two hundred twenty-five".