542666245 has 24 divisors (see below), whose sum is σ = 719923680. Its totient is φ = 392383200.

The previous prime is 542666237. The next prime is 542666249.

542666245 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 542666245 - 2³ = 542666237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 542666198 and 542666207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542666249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105790 + ... + 110800.

It is an arithmetic number, because the mean of its divisors is an integer number (29996820).

Almost surely, 2^542666245 is an apocalyptic number.

542666245 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

542666245 is a deficient number, since it is larger than the sum of its proper divisors (177257435).

542666245 is a wasteful number, since it uses less digits than its factorization.

542666245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5217 (or 5206 counting only the distinct ones).

The product of its digits is 345600, while the sum is 40.

The square root of 542666245 is about 23295.1978957037. The cubic root of 542666245 is about 815.6633263846.

The spelling of 542666245 in words is "five hundred forty-two million, six hundred sixty-six thousand, two hundred forty-five".