50115015550 has 24 divisors (see below), whose sum is σ = 93222439632. Its totient is φ = 20044176000.

The previous prime is 50115015527. The next prime is 50115015563. The reversal of 50115015550 is 5551051105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 596655 + ... + 675445.

It is an arithmetic number, because the mean of its divisors is an integer number (3884268318).

Almost surely, 2^50115015550 is an apocalyptic number.

50115015550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50115015550 is a deficient number, since it is larger than the sum of its proper divisors (43107424082).

50115015550 is a wasteful number, since it uses less digits than its factorization.

50115015550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91524 (or 91519 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 28.

Adding to 50115015550 its reverse (5551051105), we get a palindrome (55666066655).

The spelling of 50115015550 in words is "fifty billion, one hundred fifteen million, fifteen thousand, five hundred fifty".