50145993 has 32 divisors (see below), whose sum is σ = 77051520. Its totient is φ = 32209920.

The previous prime is 50145923. The next prime is 50146001. The reversal of 50145993 is 39954105.

50145993 is a `hidden beast` number, since 50 + 14 + 599 + 3 = 666.

It is not a de Polignac number, because 50145993 - 2⁸ = 50145737 is a prime.

It is a super-2 number, since 2×50145993² = 5029241227912098, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50145923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107146 + ... + 107612.

It is an arithmetic number, because the mean of its divisors is an integer number (2407860).

Almost surely, 2^50145993 is an apocalyptic number.

It is an amenable number.

50145993 is a deficient number, since it is larger than the sum of its proper divisors (26905527).

50145993 is a wasteful number, since it uses less digits than its factorization.

50145993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 50145993 is about 7081.3835512561. The cubic root of 50145993 is about 368.7613633193.

The spelling of 50145993 in words is "fifty million, one hundred forty-five thousand, nine hundred ninety-three".