542508461 has 6 divisors (see below), whose sum is σ = 596311086. Its totient is φ = 493189400.

The previous prime is 542508457. The next prime is 542508493. The reversal of 542508461 is 164805245.

It can be written as a sum of positive squares in only one way, i.e., 450712900 + 91795561 = 21230^2 + 9581^2 .

It is not a de Polignac number, because 542508461 - 2² = 542508457 is a prime.

It is a super-3 number, since 3×542508461³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542508431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2241650 + ... + 2241891.

It is an arithmetic number, because the mean of its divisors is an integer number (99385181).

Almost surely, 2^542508461 is an apocalyptic number.

It is an amenable number.

542508461 is a deficient number, since it is larger than the sum of its proper divisors (53802625).

542508461 is a wasteful number, since it uses less digits than its factorization.

542508461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4483563 (or 4483552 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 542508461 is about 23291.8110287715. The cubic root of 542508461 is about 815.5842654524.

The spelling of 542508461 in words is "five hundred forty-two million, five hundred eight thousand, four hundred sixty-one".