50120006015550 has 96 divisors (see below), whose sum is σ = 132039958723200. Its totient is φ = 12545731992960.

The previous prime is 50120006015543. The next prime is 50120006015561. The reversal of 50120006015550 is 5551060002105.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80358924 + ... + 80980223.

It is an arithmetic number, because the mean of its divisors is an integer number (1375416236700).

Almost surely, 2^{50120006015550} is an apocalyptic number.

50120006015550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50120006015550 is an abundant number, since it is smaller than the sum of its proper divisors (81919952707650).

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

50120006015550 is a wasteful number, since it uses less digits than its factorization.

50120006015550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161339290 (or 161339285 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 30.

Adding to 50120006015550 its reverse (5551060002105), we get a palindrome (55671066017655).

The spelling of 50120006015550 in words is "fifty trillion, one hundred twenty billion, six million, fifteen thousand, five hundred fifty".