542052541 has 2 divisors, whose sum is σ = 542052542. Its totient is φ = 542052540.

The previous prime is 542052509. The next prime is 542052547. The reversal of 542052541 is 145250245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 505800100 + 36252441 = 22490^2 + 6021^2 .

It is a cyclic number.

It is not a de Polignac number, because 542052541 - 2⁵ = 542052509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542052547) 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, 271026270 + 271026271.

It is an arithmetic number, because the mean of its divisors is an integer number (271026271).

Almost surely, 2^542052541 is an apocalyptic number.

It is an amenable number.

542052541 is a deficient number, since it is larger than the sum of its proper divisors (1).

542052541 is an equidigital number, since it uses as much as digits as its factorization.

542052541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 542052541 is about 23282.0218408969. The cubic root of 542052541 is about 815.3557311420.

The spelling of 542052541 in words is "five hundred forty-two million, fifty-two thousand, five hundred forty-one".