515542422 has 16 divisors (see below), whose sum is σ = 1037046960. Its totient is φ = 170853792.

The previous prime is 515542399. The next prime is 515542439. The reversal of 515542422 is 224245515.

It is a self number, because there is not a number n which added to its sum of digits gives 515542422.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247297 + ... + 249372.

It is an arithmetic number, because the mean of its divisors is an integer number (64815435).

Almost surely, 2^515542422 is an apocalyptic number.

515542422 is an abundant number, since it is smaller than the sum of its proper divisors (521504538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

515542422 is a wasteful number, since it uses less digits than its factorization.

515542422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496847.

The product of its digits is 16000, while the sum is 30.

The square root of 515542422 is about 22705.5592752084. The cubic root of 515542422 is about 801.8407726548.

Adding to 515542422 its reverse (224245515), we get a palindrome (739787937).

The spelling of 515542422 in words is "five hundred fifteen million, five hundred forty-two thousand, four hundred twenty-two".