542221450 has 12 divisors (see below), whose sum is σ = 1008531990. Its totient is φ = 216888560.

The previous prime is 542221447. The next prime is 542221483. The reversal of 542221450 is 54122245.

It can be written as a sum of positive squares in 3 ways, for example, as 230098561 + 312122889 = 15169^2 + 17667^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5422165 + ... + 5422264.

Almost surely, 2^542221450 is an apocalyptic number.

542221450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

542221450 is a deficient number, since it is larger than the sum of its proper divisors (466310540).

542221450 is a wasteful number, since it uses less digits than its factorization.

542221450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10844441 (or 10844436 counting only the distinct ones).

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

The square root of 542221450 is about 23285.6490139313. The cubic root of 542221450 is about 815.4404133503.

Adding to 542221450 its reverse (54122245), we get a palindrome (596343695).

The spelling of 542221450 in words is "five hundred forty-two million, two hundred twenty-one thousand, four hundred fifty".