50720156550 has 72 divisors (see below), whose sum is σ = 155735042736. Its totient is φ = 11593177920.

The previous prime is 50720156527. The next prime is 50720156561. The reversal of 50720156550 is 5565102705.

It is a happy number.

50720156550 is a `hidden beast` number, since 50 + 7 + 2 + 0 + 1 + 56 + 550 = 666.

50720156550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×50720156550³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8047669 + ... + 8053968.

Almost surely, 2^50720156550 is an apocalyptic number.

50720156550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50720156550 is an abundant number, since it is smaller than the sum of its proper divisors (105014886186).

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

50720156550 is a wasteful number, since it uses less digits than its factorization.

50720156550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16101662 (or 16101654 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 36.

The spelling of 50720156550 in words is "fifty billion, seven hundred twenty million, one hundred fifty-six thousand, five hundred fifty".