50615220 has 24 divisors (see below), whose sum is σ = 141722784. Its totient is φ = 13497376.

The previous prime is 50615209. The next prime is 50615231. The reversal of 50615220 is 2251605.

It is an interprime number because it is at equal distance from previous prime (50615209) and next prime (50615231).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421734 + ... + 421853.

It is an arithmetic number, because the mean of its divisors is an integer number (5905116).

Almost surely, 2^50615220 is an apocalyptic number.

It is an amenable number.

50615220 is an abundant number, since it is smaller than the sum of its proper divisors (91107564).

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

50615220 is a wasteful number, since it uses less digits than its factorization.

50615220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843599 (or 843597 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 50615220 is about 7114.4374338383. The cubic root of 50615220 is about 369.9079878336.

Adding to 50615220 its reverse (2251605), we get a palindrome (52866825).

The spelling of 50615220 in words is "fifty million, six hundred fifteen thousand, two hundred twenty".