542250621 has 12 divisors (see below), whose sum is σ = 854455680. Its totient is φ = 328636680.

The previous prime is 542250617. The next prime is 542250623. The reversal of 542250621 is 126052245.

It is not a de Polignac number, because 542250621 - 2² = 542250617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542250623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2738541 + ... + 2738738.

It is an arithmetic number, because the mean of its divisors is an integer number (71204640).

Almost surely, 2^542250621 is an apocalyptic number.

It is an amenable number.

542250621 is a deficient number, since it is larger than the sum of its proper divisors (312205059).

542250621 is a wasteful number, since it uses less digits than its factorization.

542250621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5477296 (or 5477293 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 542250621 is about 23286.2753784284. The cubic root of 542250621 is about 815.4550363951.

The spelling of 542250621 in words is "five hundred forty-two million, two hundred fifty thousand, six hundred twenty-one".