542277581 has 2 divisors, whose sum is σ = 542277582. Its totient is φ = 542277580.

The previous prime is 542277563. The next prime is 542277607. The reversal of 542277581 is 185772245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 532455625 + 9821956 = 23075^2 + 3134^2 .

It is a cyclic number.

It is not a de Polignac number, because 542277581 - 2⁶ = 542277517 is a prime.

It is a super-2 number, since 2×542277581² = 588129949710423122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542277551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271138790 + 271138791.

It is an arithmetic number, because the mean of its divisors is an integer number (271138791).

Almost surely, 2^542277581 is an apocalyptic number.

It is an amenable number.

542277581 is a deficient number, since it is larger than the sum of its proper divisors (1).

542277581 is an equidigital number, since it uses as much as digits as its factorization.

542277581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 156800, while the sum is 41.

The square root of 542277581 is about 23286.8542529900. The cubic root of 542277581 is about 815.4685506280.

The spelling of 542277581 in words is "five hundred forty-two million, two hundred seventy-seven thousand, five hundred eighty-one".