531056101 has 2 divisors, whose sum is σ = 531056102. Its totient is φ = 531056100.

The previous prime is 531056083. The next prime is 531056117. The reversal of 531056101 is 101650135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 369639076 + 161417025 = 19226^2 + 12705^2 .

It is a cyclic number.

It is not a de Polignac number, because 531056101 - 2¹¹ = 531054053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531056171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265528050 + 265528051.

It is an arithmetic number, because the mean of its divisors is an integer number (265528051).

Almost surely, 2^531056101 is an apocalyptic number.

It is an amenable number.

531056101 is a deficient number, since it is larger than the sum of its proper divisors (1).

531056101 is an equidigital number, since it uses as much as digits as its factorization.

531056101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 531056101 is about 23044.6544994712. The cubic root of 531056101 is about 809.8044038210.

The spelling of 531056101 in words is "five hundred thirty-one million, fifty-six thousand, one hundred one".