542522321 has 32 divisors (see below), whose sum is σ = 632586240. Its totient is φ = 460468800.

The previous prime is 542522317. The next prime is 542522353. The reversal of 542522321 is 123225245.

It is not a de Polignac number, because 542522321 - 2² = 542522317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542522621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2840336 + ... + 2840526.

It is an arithmetic number, because the mean of its divisors is an integer number (19768320).

Almost surely, 2^542522321 is an apocalyptic number.

It is an amenable number.

542522321 is a deficient number, since it is larger than the sum of its proper divisors (90063919).

542522321 is a wasteful number, since it uses less digits than its factorization.

542522321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437.

The product of its digits is 4800, while the sum is 26.

The square root of 542522321 is about 23292.1085563330. The cubic root of 542522321 is about 815.5912109058.

Adding to 542522321 its reverse (123225245), we get a palindrome (665747566).

The spelling of 542522321 in words is "five hundred forty-two million, five hundred twenty-two thousand, three hundred twenty-one".