542610637 has 2 divisors, whose sum is σ = 542610638. Its totient is φ = 542610636.

The previous prime is 542610583. The next prime is 542610643. The reversal of 542610637 is 736016245.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 423495241 + 119115396 = 20579^2 + 10914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542610637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542610647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271305318 + 271305319.

It is an arithmetic number, because the mean of its divisors is an integer number (271305319).

Almost surely, 2^542610637 is an apocalyptic number.

It is an amenable number.

542610637 is a deficient number, since it is larger than the sum of its proper divisors (1).

542610637 is an equidigital number, since it uses as much as digits as its factorization.

542610637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 542610637 is about 23294.0043144153. The cubic root of 542610637 is about 815.6354645966.

The spelling of 542610637 in words is "five hundred forty-two million, six hundred ten thousand, six hundred thirty-seven".