542250650603509 has 2 divisors, whose sum is σ = 542250650603510. Its totient is φ = 542250650603508.

The previous prime is 542250650603503. The next prime is 542250650603531. The reversal of 542250650603509 is 905306056052245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 345933142121284 + 196317508482225 = 18599278^2 + 14011335^2 .

It is a cyclic number.

It is not a de Polignac number, because 542250650603509 - 2¹³ = 542250650595317 is a prime.

It is a super-2 number, since 2×542250650603509² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542250650603503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271125325301754 + 271125325301755.

It is an arithmetic number, because the mean of its divisors is an integer number (271125325301755).

Almost surely, 2^{542250650603509} is an apocalyptic number.

It is an amenable number.

542250650603509 is a deficient number, since it is larger than the sum of its proper divisors (1).

542250650603509 is an equidigital number, since it uses as much as digits as its factorization.

542250650603509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720000, while the sum is 52.

The spelling of 542250650603509 in words is "five hundred forty-two trillion, two hundred fifty billion, six hundred fifty million, six hundred three thousand, five hundred nine".