531420025 has 12 divisors (see below), whose sum is σ = 693643600. Its totient is φ = 402760080.

The previous prime is 531420013. The next prime is 531420031. The reversal of 531420025 is 520024135.

It is not a de Polignac number, because 531420025 - 2¹³ = 531411833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 531419978 and 531420005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 558915 + ... + 559864.

Almost surely, 2^531420025 is an apocalyptic number.

It is an amenable number.

531420025 is a deficient number, since it is larger than the sum of its proper divisors (162223575).

531420025 is a wasteful number, since it uses less digits than its factorization.

531420025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118808 (or 1118803 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 531420025 is about 23052.5492082763. The cubic root of 531420025 is about 809.9893434558.

The spelling of 531420025 in words is "five hundred thirty-one million, four hundred twenty thousand, twenty-five".