531020025 has 18 divisors (see below), whose sum is σ = 951116270. Its totient is φ = 283210560.

The previous prime is 531020023. The next prime is 531020027. The reversal of 531020025 is 520020135.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (531020023) and next prime (531020027).

It can be written as a sum of positive squares in 3 ways, for example, as 158684409 + 372335616 = 12597^2 + 19296^2 .

It is not a de Polignac number, because 531020025 - 2¹ = 531020023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (531020023) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 1179820 + ... + 1180269.

Almost surely, 2^531020025 is an apocalyptic number.

It is an amenable number.

531020025 is a deficient number, since it is larger than the sum of its proper divisors (420096245).

531020025 is a wasteful number, since it uses less digits than its factorization.

531020025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360105 (or 2360097 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 531020025 is about 23043.8717449998. The cubic root of 531020025 is about 809.7860660439.

The spelling of 531020025 in words is "five hundred thirty-one million, twenty thousand, twenty-five".