50555145 has 16 divisors (see below), whose sum is σ = 80982720. Its totient is φ = 26931264.

The previous prime is 50555137. The next prime is 50555147. The reversal of 50555145 is 54155505.

It is not a de Polignac number, because 50555145 - 2³ = 50555137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50555147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17547 + ... + 20223.

It is an arithmetic number, because the mean of its divisors is an integer number (5061420).

Almost surely, 2^50555145 is an apocalyptic number.

It is an amenable number.

50555145 is a deficient number, since it is larger than the sum of its proper divisors (30427575).

50555145 is a wasteful number, since it uses less digits than its factorization.

50555145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3944.

The product of its (nonzero) digits is 12500, while the sum is 30.

The square root of 50555145 is about 7110.2141317966. The cubic root of 50555145 is about 369.7615824639.

The spelling of 50555145 in words is "fifty million, five hundred fifty-five thousand, one hundred forty-five".