542012551 has 2 divisors, whose sum is σ = 542012552. Its totient is φ = 542012550.

The previous prime is 542012539. The next prime is 542012557. The reversal of 542012551 is 155210245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 542012551 - 2⁷ = 542012423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542012557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271006275 + 271006276.

It is an arithmetic number, because the mean of its divisors is an integer number (271006276).

Almost surely, 2^542012551 is an apocalyptic number.

542012551 is a deficient number, since it is larger than the sum of its proper divisors (1).

542012551 is an equidigital number, since it uses as much as digits as its factorization.

542012551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 542012551 is about 23281.1630078912. The cubic root of 542012551 is about 815.3356796555.

Adding to 542012551 its reverse (155210245), we get a palindrome (697222796).

It can be divided in two parts, 5420 and 12551, that added together give a palindrome (17971).

The spelling of 542012551 in words is "five hundred forty-two million, twelve thousand, five hundred fifty-one".