542440501 has 2 divisors, whose sum is σ = 542440502. Its totient is φ = 542440500.

The previous prime is 542440453. The next prime is 542440523. The reversal of 542440501 is 105044245.

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., 411887025 + 130553476 = 20295^2 + 11426^2 .

It is a cyclic number.

It is not a de Polignac number, because 542440501 - 2²⁹ = 5569589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542444501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271220250 + 271220251.

It is an arithmetic number, because the mean of its divisors is an integer number (271220251).

Almost surely, 2^542440501 is an apocalyptic number.

It is an amenable number.

542440501 is a deficient number, since it is larger than the sum of its proper divisors (1).

542440501 is an equidigital number, since it uses as much as digits as its factorization.

542440501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 542440501 is about 23290.3521012457. The cubic root of 542440501 is about 815.5502079674.

Adding to 542440501 its reverse (105044245), we get a palindrome (647484746).

The spelling of 542440501 in words is "five hundred forty-two million, four hundred forty thousand, five hundred one".