542205403 has 2 divisors, whose sum is σ = 542205404. Its totient is φ = 542205402.

The previous prime is 542205371. The next prime is 542205421. The reversal of 542205403 is 304502245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 542205403 - 2⁵ = 542205371 is a prime.

It is not a weakly prime, because it can be changed into another prime (542235403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271102701 + 271102702.

It is an arithmetic number, because the mean of its divisors is an integer number (271102702).

Almost surely, 2^542205403 is an apocalyptic number.

542205403 is a deficient number, since it is larger than the sum of its proper divisors (1).

542205403 is an equidigital number, since it uses as much as digits as its factorization.

542205403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 542205403 is about 23285.3044429314. The cubic root of 542205403 is about 815.4323689732.

Adding to 542205403 its reverse (304502245), we get a palindrome (846707648).

The spelling of 542205403 in words is "five hundred forty-two million, two hundred five thousand, four hundred three".