542505031 has 2 divisors, whose sum is σ = 542505032. Its totient is φ = 542505030.

The previous prime is 542504993. The next prime is 542505079. The reversal of 542505031 is 130505245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542505031 - 2¹⁹ = 541980743 is a prime.

It is a super-2 number, since 2×542505031² = 588623417320621922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 542504987 and 542505005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542505731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271252515 + 271252516.

It is an arithmetic number, because the mean of its divisors is an integer number (271252516).

Almost surely, 2^542505031 is an apocalyptic number.

542505031 is a deficient number, since it is larger than the sum of its proper divisors (1).

542505031 is an equidigital number, since it uses as much as digits as its factorization.

542505031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 542505031 is about 23291.7373976267. The cubic root of 542505031 is about 815.5825466098.

The spelling of 542505031 in words is "five hundred forty-two million, five hundred five thousand, thirty-one".