1550220242 has 8 divisors (see below), whose sum is σ = 2462114556. Its totient is φ = 729515392.

The previous prime is 1550220229. The next prime is 1550220257. The reversal of 1550220242 is 2420220551.

It can be written as a sum of positive squares in 2 ways, for example, as 1412181241 + 138039001 = 37579^2 + 11749^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22797323 + ... + 22797390.

Almost surely, 2^1550220242 is an apocalyptic number.

1550220242 is a deficient number, since it is larger than the sum of its proper divisors (911894314).

1550220242 is a wasteful number, since it uses less digits than its factorization.

1550220242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45594732.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 1550220242 is about 39372.8363469029. The cubic root of 1550220242 is about 1157.3493386156.

Adding to 1550220242 its reverse (2420220551), we get a palindrome (3970440793).

The spelling of 1550220242 in words is "one billion, five hundred fifty million, two hundred twenty thousand, two hundred forty-two".