542253557437 has 2 divisors, whose sum is σ = 542253557438. Its totient is φ = 542253557436.

The previous prime is 542253557431. The next prime is 542253557449. The reversal of 542253557437 is 734755352245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 491553829881 + 50699727556 = 701109^2 + 225166^2 .

It is a cyclic number.

It is not a de Polignac number, because 542253557437 - 2²⁷ = 542119339709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542253557431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271126778718 + 271126778719.

It is an arithmetic number, because the mean of its divisors is an integer number (271126778719).

Almost surely, 2^542253557437 is an apocalyptic number.

It is an amenable number.

542253557437 is a deficient number, since it is larger than the sum of its proper divisors (1).

542253557437 is an equidigital number, since it uses as much as digits as its factorization.

542253557437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640000, while the sum is 52.

The spelling of 542253557437 in words is "five hundred forty-two billion, two hundred fifty-three million, five hundred fifty-seven thousand, four hundred thirty-seven".